[{"publication_status":"published","date_published":"2019-06-01T00:00:00Z","scopus_import":"1","publication":"Proceedings of the 36th International Conference on Machine Learning","article_processing_charge":"No","page":"3488-3498","date_updated":"2023-10-17T12:31:55Z","external_id":{"arxiv":["1901.10310"]},"month":"06","_id":"6590","type":"conference","author":[{"full_name":"Konstantinov, Nikola H","first_name":"Nikola H","last_name":"Konstantinov","id":"4B9D76E4-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Lampert","first_name":"Christoph","id":"40C20FD2-F248-11E8-B48F-1D18A9856A87","full_name":"Lampert, Christoph","orcid":"0000-0001-8622-7887"}],"language":[{"iso":"eng"}],"department":[{"_id":"ChLa"}],"ec_funded":1,"conference":{"start_date":"2019-06-10","location":"Long Beach, CA, USA","name":"ICML: International Conference on Machine Learning","end_date":"2919-06-15"},"quality_controlled":"1","oa_version":"Preprint","oa":1,"related_material":{"record":[{"id":"10799","status":"public","relation":"dissertation_contains"}]},"main_file_link":[{"url":"https://arxiv.org/abs/1901.10310","open_access":"1"}],"arxiv":1,"volume":97,"citation":{"short":"N.H. Konstantinov, C. Lampert, in:, Proceedings of the 36th International Conference on Machine Learning, ML Research Press, 2019, pp. 3488–3498.","ista":"Konstantinov NH, Lampert C. 2019. Robust learning from untrusted sources. Proceedings of the 36th International Conference on Machine Learning. ICML: International Conference on Machine Learning vol. 97, 3488–3498.","ieee":"N. H. Konstantinov and C. Lampert, “Robust learning from untrusted sources,” in <i>Proceedings of the 36th International Conference on Machine Learning</i>, Long Beach, CA, USA, 2019, vol. 97, pp. 3488–3498.","chicago":"Konstantinov, Nikola H, and Christoph Lampert. “Robust Learning from Untrusted Sources.” In <i>Proceedings of the 36th International Conference on Machine Learning</i>, 97:3488–98. ML Research Press, 2019.","apa":"Konstantinov, N. H., &#38; Lampert, C. (2019). Robust learning from untrusted sources. In <i>Proceedings of the 36th International Conference on Machine Learning</i> (Vol. 97, pp. 3488–3498). Long Beach, CA, USA: ML Research Press.","mla":"Konstantinov, Nikola H., and Christoph Lampert. “Robust Learning from Untrusted Sources.” <i>Proceedings of the 36th International Conference on Machine Learning</i>, vol. 97, ML Research Press, 2019, pp. 3488–98.","ama":"Konstantinov NH, Lampert C. Robust learning from untrusted sources. In: <i>Proceedings of the 36th International Conference on Machine Learning</i>. Vol 97. ML Research Press; 2019:3488-3498."},"title":"Robust learning from untrusted sources","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","publisher":"ML Research Press","intvolume":"        97","abstract":[{"text":"Modern machine learning methods often require more data for training than a single expert can provide. Therefore, it has become a standard procedure to collect data from external sources, e.g. via crowdsourcing. Unfortunately, the quality of these sources is not always guaranteed. As additional complications, the data might be stored in a distributed way, or might even have to remain private. In this work, we address the question of how to learn robustly in such scenarios. Studying the problem through the lens of statistical learning theory, we derive a procedure that allows for learning from all available sources, yet automatically suppresses irrelevant or corrupted data. We show by extensive experiments that our method provides significant improvements over alternative approaches from robust statistics and distributed optimization. ","lang":"eng"}],"year":"2019","day":"01","date_created":"2019-06-27T14:18:23Z","project":[{"call_identifier":"FP7","name":"Lifelong Learning of Visual Scene Understanding","_id":"2532554C-B435-11E9-9278-68D0E5697425","grant_number":"308036"},{"grant_number":"665385","call_identifier":"H2020","name":"International IST Doctoral Program","_id":"2564DBCA-B435-11E9-9278-68D0E5697425"}]},{"language":[{"iso":"eng"}],"author":[{"first_name":"Yekini","last_name":"Shehu","id":"3FC7CB58-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-9224-7139","full_name":"Shehu, Yekini"}],"_id":"6596","type":"journal_article","external_id":{"isi":["000473237500002"],"arxiv":["2101.09068"]},"month":"12","publication":"Results in Mathematics","article_processing_charge":"Yes (via OA deal)","publication_status":"published","date_published":"2019-12-01T00:00:00Z","scopus_import":"1","date_updated":"2023-08-28T12:26:22Z","tmp":{"short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"article_number":"138","issue":"4","file":[{"content_type":"application/pdf","file_name":"Springer_2019_Shehu.pdf","date_created":"2019-07-03T15:20:40Z","access_level":"open_access","checksum":"c6d18cb1e16fc0c36a0e0f30b4ebbc2d","file_size":466942,"file_id":"6605","creator":"kschuh","relation":"main_file","date_updated":"2020-07-14T12:47:34Z"}],"oa_version":"Published Version","quality_controlled":"1","oa":1,"publication_identifier":{"issn":["1422-6383"],"eissn":["1420-9012"]},"department":[{"_id":"VlKo"}],"ec_funded":1,"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","title":"Convergence results of forward-backward algorithms for sum of monotone operators in Banach spaces","license":"https://creativecommons.org/licenses/by/4.0/","isi":1,"volume":74,"citation":{"ama":"Shehu Y. Convergence results of forward-backward algorithms for sum of monotone operators in Banach spaces. <i>Results in Mathematics</i>. 2019;74(4). doi:<a href=\"https://doi.org/10.1007/s00025-019-1061-4\">10.1007/s00025-019-1061-4</a>","mla":"Shehu, Yekini. “Convergence Results of Forward-Backward Algorithms for Sum of Monotone Operators in Banach Spaces.” <i>Results in Mathematics</i>, vol. 74, no. 4, 138, Springer, 2019, doi:<a href=\"https://doi.org/10.1007/s00025-019-1061-4\">10.1007/s00025-019-1061-4</a>.","chicago":"Shehu, Yekini. “Convergence Results of Forward-Backward Algorithms for Sum of Monotone Operators in Banach Spaces.” <i>Results in Mathematics</i>. Springer, 2019. <a href=\"https://doi.org/10.1007/s00025-019-1061-4\">https://doi.org/10.1007/s00025-019-1061-4</a>.","ieee":"Y. Shehu, “Convergence results of forward-backward algorithms for sum of monotone operators in Banach spaces,” <i>Results in Mathematics</i>, vol. 74, no. 4. Springer, 2019.","apa":"Shehu, Y. (2019). Convergence results of forward-backward algorithms for sum of monotone operators in Banach spaces. <i>Results in Mathematics</i>. Springer. <a href=\"https://doi.org/10.1007/s00025-019-1061-4\">https://doi.org/10.1007/s00025-019-1061-4</a>","ista":"Shehu Y. 2019. Convergence results of forward-backward algorithms for sum of monotone operators in Banach spaces. Results in Mathematics. 74(4), 138.","short":"Y. Shehu, Results in Mathematics 74 (2019)."},"arxiv":1,"doi":"10.1007/s00025-019-1061-4","file_date_updated":"2020-07-14T12:47:34Z","date_created":"2019-06-29T10:11:30Z","project":[{"grant_number":"616160","_id":"25FBA906-B435-11E9-9278-68D0E5697425","name":"Discrete Optimization in Computer Vision: Theory and Practice","call_identifier":"FP7"},{"name":"IST Austria Open Access Fund","_id":"B67AFEDC-15C9-11EA-A837-991A96BB2854"}],"article_type":"original","day":"01","year":"2019","ddc":["000"],"has_accepted_license":"1","abstract":[{"text":"It is well known that many problems in image recovery, signal processing, and machine learning can be modeled as finding zeros of the sum of maximal monotone and Lipschitz continuous monotone operators. Many papers have studied forward-backward splitting methods for finding zeros of the sum of two monotone operators in Hilbert spaces. Most of the proposed splitting methods in the literature have been proposed for the sum of maximal monotone and inverse-strongly monotone operators in Hilbert spaces. In this paper, we consider splitting methods for finding zeros of the sum of maximal monotone operators and Lipschitz continuous monotone operators in Banach spaces. We obtain weak and strong convergence results for the zeros of the sum of maximal monotone and Lipschitz continuous monotone operators in Banach spaces. Many already studied problems in the literature can be considered as special cases of this paper.","lang":"eng"}],"intvolume":"        74","publisher":"Springer"},{"article_type":"review","day":"27","year":"2019","date_created":"2019-06-30T21:59:11Z","project":[{"grant_number":"742573","name":"Interaction and feedback between cell mechanics and fate specification in vertebrate gastrulation","_id":"260F1432-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"},{"grant_number":"P31639","_id":"268294B6-B435-11E9-9278-68D0E5697425","name":"Active mechano-chemical description of the cell cytoskeleton","call_identifier":"FWF"}],"publisher":"Elsevier","intvolume":"       178","abstract":[{"text":"There is increasing evidence that both mechanical and biochemical signals play important roles in development and disease. The development of complex organisms, in particular, has been proposed to rely on the feedback between mechanical and biochemical patterning events. This feedback occurs at the molecular level via mechanosensation but can also arise as an emergent property of the system at the cellular and tissue level. In recent years, dynamic changes in tissue geometry, flow, rheology, and cell fate specification have emerged as key platforms of mechanochemical feedback loops in multiple processes. Here, we review recent experimental and theoretical advances in understanding how these feedbacks function in development and disease.","lang":"eng"}],"isi":1,"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","title":"Mechanochemical feedback loops in development and disease","doi":"10.1016/j.cell.2019.05.052","volume":178,"citation":{"short":"E.B. Hannezo, C.-P.J. Heisenberg, Cell 178 (2019) 12–25.","ista":"Hannezo EB, Heisenberg C-PJ. 2019. Mechanochemical feedback loops in development and disease. Cell. 178(1), 12–25.","ieee":"E. B. Hannezo and C.-P. J. Heisenberg, “Mechanochemical feedback loops in development and disease,” <i>Cell</i>, vol. 178, no. 1. Elsevier, pp. 12–25, 2019.","chicago":"Hannezo, Edouard B, and Carl-Philipp J Heisenberg. “Mechanochemical Feedback Loops in Development and Disease.” <i>Cell</i>. Elsevier, 2019. <a href=\"https://doi.org/10.1016/j.cell.2019.05.052\">https://doi.org/10.1016/j.cell.2019.05.052</a>.","apa":"Hannezo, E. B., &#38; Heisenberg, C.-P. J. (2019). Mechanochemical feedback loops in development and disease. <i>Cell</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.cell.2019.05.052\">https://doi.org/10.1016/j.cell.2019.05.052</a>","mla":"Hannezo, Edouard B., and Carl-Philipp J. Heisenberg. “Mechanochemical Feedback Loops in Development and Disease.” <i>Cell</i>, vol. 178, no. 1, Elsevier, 2019, pp. 12–25, doi:<a href=\"https://doi.org/10.1016/j.cell.2019.05.052\">10.1016/j.cell.2019.05.052</a>.","ama":"Hannezo EB, Heisenberg C-PJ. Mechanochemical feedback loops in development and disease. <i>Cell</i>. 2019;178(1):12-25. doi:<a href=\"https://doi.org/10.1016/j.cell.2019.05.052\">10.1016/j.cell.2019.05.052</a>"},"oa":1,"oa_version":"Published Version","quality_controlled":"1","issue":"1","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1016/j.cell.2019.05.052"}],"pmid":1,"department":[{"_id":"CaHe"},{"_id":"EdHa"}],"ec_funded":1,"publication_identifier":{"issn":["00928674"]},"_id":"6601","type":"journal_article","language":[{"iso":"eng"}],"author":[{"orcid":"0000-0001-6005-1561","full_name":"Hannezo, Edouard B","id":"3A9DB764-F248-11E8-B48F-1D18A9856A87","last_name":"Hannezo","first_name":"Edouard B"},{"orcid":"0000-0002-0912-4566","full_name":"Heisenberg, Carl-Philipp J","id":"39427864-F248-11E8-B48F-1D18A9856A87","last_name":"Heisenberg","first_name":"Carl-Philipp J"}],"article_processing_charge":"No","publication":"Cell","date_published":"2019-07-27T00:00:00Z","scopus_import":"1","publication_status":"published","page":"12-25","date_updated":"2023-08-28T12:25:21Z","external_id":{"pmid":["31251912"],"isi":["000473002700005"]},"month":"07"},{"department":[{"_id":"PreCl"}],"file":[{"file_name":"nature_2019_Nguyen.pdf","date_created":"2019-07-08T15:15:28Z","content_type":"application/pdf","checksum":"3283522fffadf4b5fc8c7adfe3ba4564","file_size":2017352,"file_id":"6623","access_level":"open_access","creator":"kschuh","relation":"main_file","date_updated":"2020-07-14T12:47:34Z"}],"quality_controlled":"1","oa_version":"Published Version","oa":1,"article_number":"9139","tmp":{"short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"issue":"1","date_published":"2019-06-24T00:00:00Z","scopus_import":"1","publication_status":"published","publication":"Scientific Reports","article_processing_charge":"No","date_updated":"2023-08-28T12:26:51Z","external_id":{"isi":["000472597400042"]},"month":"06","_id":"6607","type":"journal_article","author":[{"first_name":"Chi Huu","last_name":"Nguyen","full_name":"Nguyen, Chi Huu"},{"full_name":"Glüxam, Tobias","last_name":"Glüxam","first_name":"Tobias"},{"full_name":"Schlerka, Angela","last_name":"Schlerka","first_name":"Angela"},{"id":"2ED6B14C-F248-11E8-B48F-1D18A9856A87","last_name":"Bauer","first_name":"Katharina","full_name":"Bauer, Katharina"},{"last_name":"Grandits","first_name":"Alexander M.","full_name":"Grandits, Alexander M."},{"full_name":"Hackl, Hubert","first_name":"Hubert","last_name":"Hackl"},{"first_name":"Oliver","last_name":"Dovey","full_name":"Dovey, Oliver"},{"last_name":"Zöchbauer-Müller","first_name":"Sabine","full_name":"Zöchbauer-Müller, Sabine"},{"full_name":"Cooper, Jonathan L.","first_name":"Jonathan L.","last_name":"Cooper"},{"full_name":"Vassiliou, George S.","first_name":"George S.","last_name":"Vassiliou"},{"full_name":"Stoiber, Dagmar","first_name":"Dagmar","last_name":"Stoiber"},{"first_name":"Rotraud","last_name":"Wieser","full_name":"Wieser, Rotraud"},{"full_name":"Heller, Gerwin","last_name":"Heller","first_name":"Gerwin"}],"language":[{"iso":"eng"}],"publisher":"Nature Publishing Group","has_accepted_license":"1","ddc":["576"],"abstract":[{"lang":"eng","text":"Acute myeloid leukemia (AML) is a heterogeneous disease with respect to its genetic and molecular basis and to patients´ outcome. Clinical, cytogenetic, and mutational data are used to classify patients into risk groups with different survival, however, within-group heterogeneity is still an issue. Here, we used a robust likelihood-based survival modeling approach and publicly available gene expression data to identify a minimal number of genes whose combined expression values were prognostic of overall survival. The resulting gene expression signature (4-GES) consisted of 4 genes (SOCS2, IL2RA, NPDC1, PHGDH), predicted patient survival as an independent prognostic parameter in several cohorts of AML patients (total, 1272 patients), and further refined prognostication based on the European Leukemia Net classification. An oncogenic role of the top scoring gene in this signature, SOCS2, was investigated using MLL-AF9 and Flt3-ITD/NPM1c driven mouse models of AML. SOCS2 promoted leukemogenesis as well as the abundance, quiescence, and activity of AML stem cells. Overall, the 4-GES represents a highly discriminating prognostic parameter in AML, whose clinical applicability is greatly enhanced by its small number of genes. The newly established role of SOCS2 in leukemia aggressiveness and stemness raises the possibility that the signature might even be exploitable therapeutically."}],"intvolume":"         9","year":"2019","day":"24","date_created":"2019-07-07T21:59:19Z","file_date_updated":"2020-07-14T12:47:34Z","doi":"10.1038/s41598-019-45579-0","volume":9,"citation":{"mla":"Nguyen, Chi Huu, et al. “SOCS2 Is Part of a Highly Prognostic 4-Gene Signature in AML and Promotes Disease Aggressiveness.” <i>Scientific Reports</i>, vol. 9, no. 1, 9139, Nature Publishing Group, 2019, doi:<a href=\"https://doi.org/10.1038/s41598-019-45579-0\">10.1038/s41598-019-45579-0</a>.","ama":"Nguyen CH, Glüxam T, Schlerka A, et al. SOCS2 is part of a highly prognostic 4-gene signature in AML and promotes disease aggressiveness. <i>Scientific Reports</i>. 2019;9(1). doi:<a href=\"https://doi.org/10.1038/s41598-019-45579-0\">10.1038/s41598-019-45579-0</a>","short":"C.H. Nguyen, T. Glüxam, A. Schlerka, K. Bauer, A.M. Grandits, H. Hackl, O. Dovey, S. Zöchbauer-Müller, J.L. Cooper, G.S. Vassiliou, D. Stoiber, R. Wieser, G. Heller, Scientific Reports 9 (2019).","ista":"Nguyen CH, Glüxam T, Schlerka A, Bauer K, Grandits AM, Hackl H, Dovey O, Zöchbauer-Müller S, Cooper JL, Vassiliou GS, Stoiber D, Wieser R, Heller G. 2019. SOCS2 is part of a highly prognostic 4-gene signature in AML and promotes disease aggressiveness. Scientific Reports. 9(1), 9139.","apa":"Nguyen, C. H., Glüxam, T., Schlerka, A., Bauer, K., Grandits, A. M., Hackl, H., … Heller, G. (2019). SOCS2 is part of a highly prognostic 4-gene signature in AML and promotes disease aggressiveness. <i>Scientific Reports</i>. Nature Publishing Group. <a href=\"https://doi.org/10.1038/s41598-019-45579-0\">https://doi.org/10.1038/s41598-019-45579-0</a>","chicago":"Nguyen, Chi Huu, Tobias Glüxam, Angela Schlerka, Katharina Bauer, Alexander M. Grandits, Hubert Hackl, Oliver Dovey, et al. “SOCS2 Is Part of a Highly Prognostic 4-Gene Signature in AML and Promotes Disease Aggressiveness.” <i>Scientific Reports</i>. Nature Publishing Group, 2019. <a href=\"https://doi.org/10.1038/s41598-019-45579-0\">https://doi.org/10.1038/s41598-019-45579-0</a>.","ieee":"C. H. Nguyen <i>et al.</i>, “SOCS2 is part of a highly prognostic 4-gene signature in AML and promotes disease aggressiveness,” <i>Scientific Reports</i>, vol. 9, no. 1. Nature Publishing Group, 2019."},"isi":1,"title":"SOCS2 is part of a highly prognostic 4-gene signature in AML and promotes disease aggressiveness","status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8"},{"related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"7460"}]},"tmp":{"name":"Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode","image":"/images/cc_by_nc_nd.png","short":"CC BY-NC-ND (4.0)"},"oa":1,"quality_controlled":"1","oa_version":"Published Version","file":[{"file_size":2665013,"file_id":"6624","checksum":"7c99be505dc7533257d42eb1830cef04","access_level":"open_access","date_created":"2019-07-08T15:24:26Z","file_name":"Elsevier_2019_Edelsbrunner.pdf","content_type":"application/pdf","date_updated":"2020-07-14T12:47:34Z","relation":"main_file","creator":"kschuh"}],"ec_funded":1,"department":[{"_id":"HeEd"}],"language":[{"iso":"eng"}],"author":[{"orcid":"0000-0002-9823-6833","full_name":"Edelsbrunner, Herbert","id":"3FB178DA-F248-11E8-B48F-1D18A9856A87","last_name":"Edelsbrunner","first_name":"Herbert"},{"full_name":"Ölsböck, Katharina","orcid":"0000-0002-4672-8297","first_name":"Katharina","last_name":"Ölsböck","id":"4D4AA390-F248-11E8-B48F-1D18A9856A87"}],"type":"journal_article","_id":"6608","month":"08","external_id":{"isi":["000485207800001"]},"date_updated":"2023-09-07T13:15:29Z","page":"1-15","publication_status":"published","scopus_import":"1","date_published":"2019-08-01T00:00:00Z","article_processing_charge":"No","publication":"Computer Aided Geometric Design","project":[{"call_identifier":"H2020","name":"Alpha Shape Theory Extended","_id":"266A2E9E-B435-11E9-9278-68D0E5697425","grant_number":"788183"},{"grant_number":"I02979-N35","_id":"2561EBF4-B435-11E9-9278-68D0E5697425","name":"Persistence and stability of geometric complexes","call_identifier":"FWF"}],"file_date_updated":"2020-07-14T12:47:34Z","date_created":"2019-07-07T21:59:20Z","year":"2019","day":"01","intvolume":"        73","abstract":[{"lang":"eng","text":"We use the canonical bases produced by the tri-partition algorithm in (Edelsbrunner and Ölsböck, 2018) to open and close holes in a polyhedral complex, K. In a concrete application, we consider the Delaunay mosaic of a finite set, we let K be an Alpha complex, and we use the persistence diagram of the distance function to guide the hole opening and closing operations. The dependences between the holes define a partial order on the cells in K that characterizes what can and what cannot be constructed using the operations. The relations in this partial order reveal structural information about the underlying filtration of complexes beyond what is expressed by the persistence diagram."}],"has_accepted_license":"1","ddc":["000"],"publisher":"Elsevier","title":"Holes and dependences in an ordered complex","status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","isi":1,"license":"https://creativecommons.org/licenses/by-nc-nd/4.0/","citation":{"ama":"Edelsbrunner H, Ölsböck K. Holes and dependences in an ordered complex. <i>Computer Aided Geometric Design</i>. 2019;73:1-15. doi:<a href=\"https://doi.org/10.1016/j.cagd.2019.06.003\">10.1016/j.cagd.2019.06.003</a>","mla":"Edelsbrunner, Herbert, and Katharina Ölsböck. “Holes and Dependences in an Ordered Complex.” <i>Computer Aided Geometric Design</i>, vol. 73, Elsevier, 2019, pp. 1–15, doi:<a href=\"https://doi.org/10.1016/j.cagd.2019.06.003\">10.1016/j.cagd.2019.06.003</a>.","apa":"Edelsbrunner, H., &#38; Ölsböck, K. (2019). Holes and dependences in an ordered complex. <i>Computer Aided Geometric Design</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.cagd.2019.06.003\">https://doi.org/10.1016/j.cagd.2019.06.003</a>","ieee":"H. Edelsbrunner and K. Ölsböck, “Holes and dependences in an ordered complex,” <i>Computer Aided Geometric Design</i>, vol. 73. Elsevier, pp. 1–15, 2019.","chicago":"Edelsbrunner, Herbert, and Katharina Ölsböck. “Holes and Dependences in an Ordered Complex.” <i>Computer Aided Geometric Design</i>. Elsevier, 2019. <a href=\"https://doi.org/10.1016/j.cagd.2019.06.003\">https://doi.org/10.1016/j.cagd.2019.06.003</a>.","ista":"Edelsbrunner H, Ölsböck K. 2019. Holes and dependences in an ordered complex. Computer Aided Geometric Design. 73, 1–15.","short":"H. Edelsbrunner, K. Ölsböck, Computer Aided Geometric Design 73 (2019) 1–15."},"volume":73,"doi":"10.1016/j.cagd.2019.06.003"},{"isi":1,"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","title":"Stationary entangled radiation from micromechanical motion","arxiv":1,"doi":"10.1038/s41586-019-1320-2","volume":570,"citation":{"apa":"Barzanjeh, S., Redchenko, E., Peruzzo, M., Wulf, M., Lewis, D., Arnold, G. M., &#38; Fink, J. M. (2019). Stationary entangled radiation from micromechanical motion. <i>Nature</i>. Nature Publishing Group. <a href=\"https://doi.org/10.1038/s41586-019-1320-2\">https://doi.org/10.1038/s41586-019-1320-2</a>","chicago":"Barzanjeh, Shabir, Elena Redchenko, Matilda Peruzzo, Matthias Wulf, Dylan Lewis, Georg M Arnold, and Johannes M Fink. “Stationary Entangled Radiation from Micromechanical Motion.” <i>Nature</i>. Nature Publishing Group, 2019. <a href=\"https://doi.org/10.1038/s41586-019-1320-2\">https://doi.org/10.1038/s41586-019-1320-2</a>.","ieee":"S. Barzanjeh <i>et al.</i>, “Stationary entangled radiation from micromechanical motion,” <i>Nature</i>, vol. 570. Nature Publishing Group, pp. 480–483, 2019.","short":"S. Barzanjeh, E. Redchenko, M. Peruzzo, M. Wulf, D. Lewis, G.M. Arnold, J.M. Fink, Nature 570 (2019) 480–483.","ista":"Barzanjeh S, Redchenko E, Peruzzo M, Wulf M, Lewis D, Arnold GM, Fink JM. 2019. Stationary entangled radiation from micromechanical motion. Nature. 570, 480–483.","ama":"Barzanjeh S, Redchenko E, Peruzzo M, et al. Stationary entangled radiation from micromechanical motion. <i>Nature</i>. 2019;570:480-483. doi:<a href=\"https://doi.org/10.1038/s41586-019-1320-2\">10.1038/s41586-019-1320-2</a>","mla":"Barzanjeh, Shabir, et al. “Stationary Entangled Radiation from Micromechanical Motion.” <i>Nature</i>, vol. 570, Nature Publishing Group, 2019, pp. 480–83, doi:<a href=\"https://doi.org/10.1038/s41586-019-1320-2\">10.1038/s41586-019-1320-2</a>."},"day":"27","year":"2019","date_created":"2019-07-07T21:59:20Z","project":[{"grant_number":"732894","call_identifier":"H2020","name":"Hybrid Optomechanical Technologies","_id":"257EB838-B435-11E9-9278-68D0E5697425"},{"grant_number":"758053","call_identifier":"H2020","_id":"26336814-B435-11E9-9278-68D0E5697425","name":"A Fiber Optic Transceiver for Superconducting Qubits"},{"_id":"258047B6-B435-11E9-9278-68D0E5697425","name":"Microwave-to-Optical Quantum Link: Quantum Teleportation and Quantum Illumination with cavity Optomechanics","call_identifier":"H2020","grant_number":"707438"},{"_id":"2671EB66-B435-11E9-9278-68D0E5697425","name":"Coherent on-chip conversion of superconducting qubit signals from microwaves to optical frequencies"}],"publisher":"Nature Publishing Group","abstract":[{"lang":"eng","text":"Mechanical systems facilitate the development of a hybrid quantum technology comprising electrical, optical, atomic and acoustic degrees of freedom1, and entanglement is essential to realize quantum-enabled devices. Continuous-variable entangled fields—known as Einstein–Podolsky–Rosen (EPR) states—are spatially separated two-mode squeezed states that can be used for quantum teleportation and quantum communication2. In the optical domain, EPR states are typically generated using nondegenerate optical amplifiers3, and at microwave frequencies Josephson circuits can serve as a nonlinear medium4,5,6. An outstanding goal is to deterministically generate and distribute entangled states with a mechanical oscillator, which requires a carefully arranged balance between excitation, cooling and dissipation in an ultralow noise environment. Here we observe stationary emission of path-entangled microwave radiation from a parametrically driven 30-micrometre-long silicon nanostring oscillator, squeezing the joint field operators of two thermal modes by 3.40 decibels below the vacuum level. The motion of this micromechanical system correlates up to 50 photons per second per hertz, giving rise to a quantum discord that is robust with respect to microwave noise7. Such generalized quantum correlations of separable states are important for quantum-enhanced detection8 and provide direct evidence of the non-classical nature of the mechanical oscillator without directly measuring its state9. This noninvasive measurement scheme allows to infer information about otherwise inaccessible objects, with potential implications for sensing, open-system dynamics and fundamental tests of quantum gravity. In the future, similar on-chip devices could be used to entangle subsystems on very different energy scales, such as microwave and optical photons."}],"intvolume":"       570","_id":"6609","type":"journal_article","language":[{"iso":"eng"}],"author":[{"id":"2D25E1F6-F248-11E8-B48F-1D18A9856A87","first_name":"Shabir","last_name":"Barzanjeh","full_name":"Barzanjeh, Shabir","orcid":"0000-0003-0415-1423"},{"first_name":"Elena","last_name":"Redchenko","id":"2C21D6E8-F248-11E8-B48F-1D18A9856A87","full_name":"Redchenko, Elena"},{"id":"3F920B30-F248-11E8-B48F-1D18A9856A87","last_name":"Peruzzo","first_name":"Matilda","full_name":"Peruzzo, Matilda","orcid":"0000-0002-3415-4628"},{"full_name":"Wulf, Matthias","orcid":"0000-0001-6613-1378","first_name":"Matthias","last_name":"Wulf","id":"45598606-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Lewis, Dylan","last_name":"Lewis","first_name":"Dylan"},{"full_name":"Arnold, Georg M","orcid":"0000-0003-1397-7876","id":"3770C838-F248-11E8-B48F-1D18A9856A87","first_name":"Georg M","last_name":"Arnold"},{"first_name":"Johannes M","last_name":"Fink","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","full_name":"Fink, Johannes M","orcid":"0000-0001-8112-028X"}],"publication":"Nature","article_processing_charge":"No","scopus_import":"1","publication_status":"published","date_published":"2019-06-27T00:00:00Z","date_updated":"2024-08-07T07:11:54Z","page":"480-483","external_id":{"isi":["000472860000042"],"arxiv":["1809.05865"]},"month":"06","acknowledged_ssus":[{"_id":"NanoFab"}],"oa_version":"Preprint","quality_controlled":"1","oa":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1809.05865"}],"department":[{"_id":"JoFi"}],"ec_funded":1},{"publisher":"Elsevier","intvolume":"       266","abstract":[{"lang":"eng","text":"We construct planar bi-Sobolev mappings whose local volume distortion is bounded from below by a given function f∈Lp with p&gt;1. More precisely, for any 1&lt;q&lt;(p+1)/2 we construct W1,q-bi-Sobolev maps with identity boundary conditions; for f∈L∞, we provide bi-Lipschitz maps. The basic building block of our construction are bi-Lipschitz maps which stretch a given compact subset of the unit square by a given factor while preserving the boundary. The construction of these stretching maps relies on a slight strengthening of the celebrated covering result of Alberti, Csörnyei, and Preiss for measurable planar sets in the case of compact sets. We apply our result to a model functional in nonlinear elasticity, the integrand of which features fast blowup as the Jacobian determinant of the deformation becomes small. For such functionals, the derivation of the equilibrium equations for minimizers requires an additional regularization of test functions, which our maps provide."}],"day":"05","year":"2019","date_created":"2018-12-11T11:44:54Z","arxiv":1,"doi":"10.1016/j.jde.2018.07.045","citation":{"ama":"Fischer JL, Kneuss O. Bi-Sobolev solutions to the prescribed Jacobian inequality in the plane with L p data and applications to nonlinear elasticity. <i>Journal of Differential Equations</i>. 2019;266(1):257-311. doi:<a href=\"https://doi.org/10.1016/j.jde.2018.07.045\">10.1016/j.jde.2018.07.045</a>","mla":"Fischer, Julian L., and Olivier Kneuss. “Bi-Sobolev Solutions to the Prescribed Jacobian Inequality in the Plane with L p Data and Applications to Nonlinear Elasticity.” <i>Journal of Differential Equations</i>, vol. 266, no. 1, Elsevier, 2019, pp. 257–311, doi:<a href=\"https://doi.org/10.1016/j.jde.2018.07.045\">10.1016/j.jde.2018.07.045</a>.","apa":"Fischer, J. L., &#38; Kneuss, O. (2019). Bi-Sobolev solutions to the prescribed Jacobian inequality in the plane with L p data and applications to nonlinear elasticity. <i>Journal of Differential Equations</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.jde.2018.07.045\">https://doi.org/10.1016/j.jde.2018.07.045</a>","chicago":"Fischer, Julian L, and Olivier Kneuss. “Bi-Sobolev Solutions to the Prescribed Jacobian Inequality in the Plane with L p Data and Applications to Nonlinear Elasticity.” <i>Journal of Differential Equations</i>. Elsevier, 2019. <a href=\"https://doi.org/10.1016/j.jde.2018.07.045\">https://doi.org/10.1016/j.jde.2018.07.045</a>.","ieee":"J. L. Fischer and O. Kneuss, “Bi-Sobolev solutions to the prescribed Jacobian inequality in the plane with L p data and applications to nonlinear elasticity,” <i>Journal of Differential Equations</i>, vol. 266, no. 1. Elsevier, pp. 257–311, 2019.","short":"J.L. Fischer, O. Kneuss, Journal of Differential Equations 266 (2019) 257–311.","ista":"Fischer JL, Kneuss O. 2019. Bi-Sobolev solutions to the prescribed Jacobian inequality in the plane with L p data and applications to nonlinear elasticity. Journal of Differential Equations. 266(1), 257–311."},"volume":266,"isi":1,"status":"public","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","title":"Bi-Sobolev solutions to the prescribed Jacobian inequality in the plane with L p data and applications to nonlinear elasticity","department":[{"_id":"JuFi"}],"quality_controlled":"1","oa":1,"oa_version":"Preprint","issue":"1","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1408.1587"}],"publist_id":"7770","date_updated":"2023-09-08T13:25:35Z","page":"257 - 311","publication":"Journal of Differential Equations","article_processing_charge":"No","scopus_import":"1","publication_status":"published","date_published":"2019-01-05T00:00:00Z","month":"01","external_id":{"isi":["000449108500010"],"arxiv":["1408.1587"]},"type":"journal_article","_id":"151","language":[{"iso":"eng"}],"author":[{"orcid":"0000-0002-0479-558X","full_name":"Fischer, Julian L","first_name":"Julian L","last_name":"Fischer","id":"2C12A0B0-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Kneuss, Olivier","first_name":"Olivier","last_name":"Kneuss"}]},{"oa":1,"year":"2019","oa_version":"Published Version","day":"02","main_file_link":[{"open_access":"1","url":"https://doi.org/10.5061/dryad.tb2rbnzwk"}],"date_created":"2023-05-23T16:36:27Z","related_material":{"record":[{"id":"7205","status":"public","relation":"used_in_publication"}]},"tmp":{"short":"CC0 (1.0)","image":"/images/cc_0.png","legal_code_url":"https://creativecommons.org/publicdomain/zero/1.0/legalcode","name":"Creative Commons Public Domain Dedication (CC0 1.0)"},"publisher":"Dryad","department":[{"_id":"NiBa"}],"abstract":[{"lang":"eng","text":"Genetic incompatibilities contribute to reproductive isolation between many diverging populations, but it is still unclear to what extent they play a role if divergence happens with gene flow. In contact zones between the \"Crab\" and \"Wave\" ecotypes of the snail Littorina saxatilis divergent selection forms strong barriers to gene flow, while the role of postzygotic barriers due to selection against hybrids remains unclear. High embryo abortion rates in this species could indicate the presence of such barriers. Postzygotic barriers might include genetic incompatibilities (e.g. Dobzhansky-Muller incompatibilities) but also maladaptation, both expected to be most pronounced in contact zones. In addition, embryo abortion might reflect physiological stress on females and embryos independent of any genetic stress. We examined all embryos of &gt;500 females sampled outside and inside contact zones of three populations in Sweden. Females' clutch size ranged from 0 to 1011 embryos (mean 130±123) and abortion rates varied between 0 and100% (mean 12%). We described female genotypes by using a hybrid index based on hundreds of SNPs differentiated between ecotypes with which we characterised female genotypes. We also calculated female SNP heterozygosity and inversion karyotype. Clutch size did not vary with female hybrid index and abortion rates were only weakly related to hybrid index in two sites but not at all in a third site. No additional variation in abortion rate was explained by female SNP heterozygosity, but increased female inversion heterozygosity added slightly to increased abortion. Our results show only weak and probably biologically insignificant postzygotic barriers contributing to ecotype divergence and the high and variable abortion rates were marginally, if at all, explained by hybrid index of females."}],"ddc":["570"],"type":"research_data_reference","_id":"13067","license":"https://creativecommons.org/publicdomain/zero/1.0/","title":"Data from: Is embryo abortion a postzygotic barrier to gene flow between Littorina ecotypes?","author":[{"full_name":"Johannesson, Kerstin","last_name":"Johannesson","first_name":"Kerstin"},{"full_name":"Zagrodzka, Zuzanna","last_name":"Zagrodzka","first_name":"Zuzanna"},{"first_name":"Rui","last_name":"Faria","full_name":"Faria, Rui"},{"first_name":"Anja M","last_name":"Westram","id":"3C147470-F248-11E8-B48F-1D18A9856A87","full_name":"Westram, Anja M","orcid":"0000-0003-1050-4969"},{"full_name":"Butlin, Roger","first_name":"Roger","last_name":"Butlin"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","doi":"10.5061/DRYAD.TB2RBNZWK","date_updated":"2023-09-06T14:48:57Z","date_published":"2019-12-02T00:00:00Z","article_processing_charge":"No","month":"12","citation":{"ista":"Johannesson K, Zagrodzka Z, Faria R, Westram AM, Butlin R. 2019. Data from: Is embryo abortion a postzygotic barrier to gene flow between Littorina ecotypes?, Dryad, <a href=\"https://doi.org/10.5061/DRYAD.TB2RBNZWK\">10.5061/DRYAD.TB2RBNZWK</a>.","short":"K. Johannesson, Z. Zagrodzka, R. Faria, A.M. Westram, R. Butlin, (2019).","apa":"Johannesson, K., Zagrodzka, Z., Faria, R., Westram, A. M., &#38; Butlin, R. (2019). Data from: Is embryo abortion a postzygotic barrier to gene flow between Littorina ecotypes? Dryad. <a href=\"https://doi.org/10.5061/DRYAD.TB2RBNZWK\">https://doi.org/10.5061/DRYAD.TB2RBNZWK</a>","ieee":"K. Johannesson, Z. Zagrodzka, R. Faria, A. M. Westram, and R. Butlin, “Data from: Is embryo abortion a postzygotic barrier to gene flow between Littorina ecotypes?” Dryad, 2019.","chicago":"Johannesson, Kerstin, Zuzanna Zagrodzka, Rui Faria, Anja M Westram, and Roger Butlin. “Data from: Is Embryo Abortion a Postzygotic Barrier to Gene Flow between Littorina Ecotypes?” Dryad, 2019. <a href=\"https://doi.org/10.5061/DRYAD.TB2RBNZWK\">https://doi.org/10.5061/DRYAD.TB2RBNZWK</a>.","mla":"Johannesson, Kerstin, et al. <i>Data from: Is Embryo Abortion a Postzygotic Barrier to Gene Flow between Littorina Ecotypes?</i> Dryad, 2019, doi:<a href=\"https://doi.org/10.5061/DRYAD.TB2RBNZWK\">10.5061/DRYAD.TB2RBNZWK</a>.","ama":"Johannesson K, Zagrodzka Z, Faria R, Westram AM, Butlin R. Data from: Is embryo abortion a postzygotic barrier to gene flow between Littorina ecotypes? 2019. doi:<a href=\"https://doi.org/10.5061/DRYAD.TB2RBNZWK\">10.5061/DRYAD.TB2RBNZWK</a>"}},{"_id":"13079","type":"research_data_reference","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"last_name":"Buchwalter","first_name":"Abigail","full_name":"Buchwalter, Abigail"},{"first_name":"Roberta","last_name":"Schulte","full_name":"Schulte, Roberta"},{"last_name":"Tsai","first_name":"Hsiao","full_name":"Tsai, Hsiao"},{"first_name":"Juliana","last_name":"Capitanio","full_name":"Capitanio, Juliana"},{"orcid":"0000-0002-2111-992X","full_name":"HETZER, Martin W","id":"86c0d31b-b4eb-11ec-ac5a-eae7b2e135ed","first_name":"Martin W","last_name":"HETZER"}],"status":"public","title":"Data from: Selective clearance of the inner nuclear membrane protein emerin by vesicular transport during ER stress","article_processing_charge":"No","date_published":"2019-10-28T00:00:00Z","date_updated":"2023-05-31T06:36:23Z","doi":"10.5061/DRYAD.N0R525H","citation":{"mla":"Buchwalter, Abigail, et al. <i>Data from: Selective Clearance of the Inner Nuclear Membrane Protein Emerin by Vesicular Transport during ER Stress</i>. Dryad, 2019, doi:<a href=\"https://doi.org/10.5061/DRYAD.N0R525H\">10.5061/DRYAD.N0R525H</a>.","ama":"Buchwalter A, Schulte R, Tsai H, Capitanio J, Hetzer M. Data from: Selective clearance of the inner nuclear membrane protein emerin by vesicular transport during ER stress. 2019. doi:<a href=\"https://doi.org/10.5061/DRYAD.N0R525H\">10.5061/DRYAD.N0R525H</a>","ista":"Buchwalter A, Schulte R, Tsai H, Capitanio J, Hetzer M. 2019. Data from: Selective clearance of the inner nuclear membrane protein emerin by vesicular transport during ER stress, Dryad, <a href=\"https://doi.org/10.5061/DRYAD.N0R525H\">10.5061/DRYAD.N0R525H</a>.","short":"A. Buchwalter, R. Schulte, H. Tsai, J. Capitanio, M. Hetzer, (2019).","chicago":"Buchwalter, Abigail, Roberta Schulte, Hsiao Tsai, Juliana Capitanio, and Martin Hetzer. “Data from: Selective Clearance of the Inner Nuclear Membrane Protein Emerin by Vesicular Transport during ER Stress.” Dryad, 2019. <a href=\"https://doi.org/10.5061/DRYAD.N0R525H\">https://doi.org/10.5061/DRYAD.N0R525H</a>.","ieee":"A. Buchwalter, R. Schulte, H. Tsai, J. Capitanio, and M. Hetzer, “Data from: Selective clearance of the inner nuclear membrane protein emerin by vesicular transport during ER stress.” Dryad, 2019.","apa":"Buchwalter, A., Schulte, R., Tsai, H., Capitanio, J., &#38; Hetzer, M. (2019). Data from: Selective clearance of the inner nuclear membrane protein emerin by vesicular transport during ER stress. Dryad. <a href=\"https://doi.org/10.5061/DRYAD.N0R525H\">https://doi.org/10.5061/DRYAD.N0R525H</a>"},"month":"10","day":"28","oa":1,"oa_version":"Published Version","year":"2019","tmp":{"short":"CC0 (1.0)","image":"/images/cc_0.png","legal_code_url":"https://creativecommons.org/publicdomain/zero/1.0/legalcode","name":"Creative Commons Public Domain Dedication (CC0 1.0)"},"related_material":{"record":[{"relation":"used_in_publication","id":"11060","status":"public"}]},"date_created":"2023-05-23T17:09:30Z","main_file_link":[{"open_access":"1","url":"https://doi.org/10.5061/dryad.n0r525h"}],"extern":"1","publisher":"Dryad","ddc":["570"],"abstract":[{"lang":"eng","text":"The inner nuclear membrane (INM) is a subdomain of the endoplasmic reticulum (ER) that is gated by the nuclear pore complex. It is unknown whether proteins of the INM and ER are degraded through shared or distinct pathways in mammalian cells. We applied dynamic proteomics to profile protein half-lives and report that INM and ER residents turn over at similar rates, indicating that the INM’s unique topology is not a barrier to turnover. Using a microscopy approach, we observed that the proteasome can degrade INM proteins in situ. However, we also uncovered evidence for selective, vesicular transport-mediated turnover of a single INM protein, emerin, that is potentiated by ER stress. Emerin is rapidly cleared from the INM by a mechanism that requires emerin’s LEM domain to mediate vesicular trafficking to lysosomes. This work demonstrates that the INM can be dynamically remodeled in response to environmental inputs."}]},{"date_updated":"2023-08-07T10:23:41Z","date_published":"2019-11-19T00:00:00Z","scopus_import":"1","publication_status":"published","publication":"Advanced Materials","article_processing_charge":"No","month":"11","external_id":{"pmid":["31709655"]},"type":"journal_article","_id":"13366","author":[{"full_name":"Bian, Tong","first_name":"Tong","last_name":"Bian"},{"first_name":"Zonglin","last_name":"Chu","full_name":"Chu, Zonglin"},{"last_name":"Klajn","first_name":"Rafal","id":"8e84690e-1e48-11ed-a02b-a1e6fb8bb53b","full_name":"Klajn, Rafal"}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["0935-9648"],"eissn":["1521-4095"]},"quality_controlled":"1","oa_version":"None","pmid":1,"issue":"20","article_number":"1905866","doi":"10.1002/adma.201905866","citation":{"ama":"Bian T, Chu Z, Klajn R. The many ways to assemble nanoparticles using light. <i>Advanced Materials</i>. 2019;32(20). doi:<a href=\"https://doi.org/10.1002/adma.201905866\">10.1002/adma.201905866</a>","mla":"Bian, Tong, et al. “The Many Ways to Assemble Nanoparticles Using Light.” <i>Advanced Materials</i>, vol. 32, no. 20, 1905866, Wiley, 2019, doi:<a href=\"https://doi.org/10.1002/adma.201905866\">10.1002/adma.201905866</a>.","apa":"Bian, T., Chu, Z., &#38; Klajn, R. (2019). The many ways to assemble nanoparticles using light. <i>Advanced Materials</i>. Wiley. <a href=\"https://doi.org/10.1002/adma.201905866\">https://doi.org/10.1002/adma.201905866</a>","ieee":"T. Bian, Z. Chu, and R. Klajn, “The many ways to assemble nanoparticles using light,” <i>Advanced Materials</i>, vol. 32, no. 20. Wiley, 2019.","chicago":"Bian, Tong, Zonglin Chu, and Rafal Klajn. “The Many Ways to Assemble Nanoparticles Using Light.” <i>Advanced Materials</i>. Wiley, 2019. <a href=\"https://doi.org/10.1002/adma.201905866\">https://doi.org/10.1002/adma.201905866</a>.","ista":"Bian T, Chu Z, Klajn R. 2019. The many ways to assemble nanoparticles using light. Advanced Materials. 32(20), 1905866.","short":"T. Bian, Z. Chu, R. Klajn, Advanced Materials 32 (2019)."},"volume":32,"title":"The many ways to assemble nanoparticles using light","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","publisher":"Wiley","extern":"1","abstract":[{"text":"The ability to reversibly assemble nanoparticles using light is both fundamentally interesting and important for applications ranging from reversible data storage to controlled drug delivery. Here, the diverse approaches that have so far been developed to control the self-assembly of nanoparticles using light are reviewed and compared. These approaches include functionalizing nanoparticles with monolayers of photoresponsive molecules, placing them in photoresponsive media capable of reversibly protonating the particles under light, and decorating plasmonic nanoparticles with thermoresponsive polymers, to name just a few. The applicability of these methods to larger, micrometer-sized particles is also discussed. Finally, several perspectives on further developments in the field are offered.","lang":"eng"}],"intvolume":"        32","year":"2019","day":"19","article_type":"original","keyword":["Mechanical Engineering","Mechanics of Materials","General Materials Science"],"date_created":"2023-08-01T09:37:26Z"},{"extern":"1","publisher":"Beilstein Institut","intvolume":"        15","abstract":[{"lang":"eng","text":"Arylazopyrazoles represent a new family of molecular photoswitches characterized by a near-quantitative conversion between two states and long thermal half-lives of the metastable state. Here, we investigated the behavior of a model arylazopyrazole in the presence of a self-assembled cage based on Pd–imidazole coordination. Owing to its high water solubility, the cage can solubilize the E isomer of arylazopyrazole, which, by itself, is not soluble in water. NMR spectroscopy and X-ray crystallography have independently demonstrated that each cage can encapsulate two molecules of E-arylazopyrazole. UV-induced switching to the Z isomer was accompanied by the release of one of the two guests from the cage and the formation of a 1:1 cage/Z-arylazopyrazole inclusion complex. DFT calculations suggest that this process involves a dramatic change in the conformation of the cage. Back-isomerization was induced with green light and resulted in the initial 1:2 cage/E-arylazopyrazole complex. This back-isomerization reaction also proceeded in the dark, with a rate significantly higher than in the absence of the cage."}],"article_type":"original","day":"10","year":"2019","date_created":"2023-08-01T09:38:06Z","keyword":["Organic Chemistry"],"doi":"10.3762/bjoc.15.232","volume":15,"citation":{"mla":"Hanopolskyi, Anton I., et al. “Reversible Switching of Arylazopyrazole within a Metal–Organic Cage.” <i>Beilstein Journal of Organic Chemistry</i>, vol. 15, Beilstein Institut, 2019, pp. 2398–407, doi:<a href=\"https://doi.org/10.3762/bjoc.15.232\">10.3762/bjoc.15.232</a>.","ama":"Hanopolskyi AI, De S, Białek MJ, et al. Reversible switching of arylazopyrazole within a metal–organic cage. <i>Beilstein Journal of Organic Chemistry</i>. 2019;15:2398-2407. doi:<a href=\"https://doi.org/10.3762/bjoc.15.232\">10.3762/bjoc.15.232</a>","ista":"Hanopolskyi AI, De S, Białek MJ, Diskin-Posner Y, Avram L, Feller M, Klajn R. 2019. Reversible switching of arylazopyrazole within a metal–organic cage. Beilstein Journal of Organic Chemistry. 15, 2398–2407.","short":"A.I. Hanopolskyi, S. De, M.J. Białek, Y. Diskin-Posner, L. Avram, M. Feller, R. Klajn, Beilstein Journal of Organic Chemistry 15 (2019) 2398–2407.","ieee":"A. I. Hanopolskyi <i>et al.</i>, “Reversible switching of arylazopyrazole within a metal–organic cage,” <i>Beilstein Journal of Organic Chemistry</i>, vol. 15. Beilstein Institut, pp. 2398–2407, 2019.","chicago":"Hanopolskyi, Anton I, Soumen De, Michał J Białek, Yael Diskin-Posner, Liat Avram, Moran Feller, and Rafal Klajn. “Reversible Switching of Arylazopyrazole within a Metal–Organic Cage.” <i>Beilstein Journal of Organic Chemistry</i>. Beilstein Institut, 2019. <a href=\"https://doi.org/10.3762/bjoc.15.232\">https://doi.org/10.3762/bjoc.15.232</a>.","apa":"Hanopolskyi, A. I., De, S., Białek, M. J., Diskin-Posner, Y., Avram, L., Feller, M., &#38; Klajn, R. (2019). Reversible switching of arylazopyrazole within a metal–organic cage. <i>Beilstein Journal of Organic Chemistry</i>. Beilstein Institut. <a href=\"https://doi.org/10.3762/bjoc.15.232\">https://doi.org/10.3762/bjoc.15.232</a>"},"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"Reversible switching of arylazopyrazole within a metal–organic cage","publication_identifier":{"eissn":["1860-5397"]},"oa":1,"quality_controlled":"1","oa_version":"Published Version","main_file_link":[{"open_access":"1","url":"https://doi.org/10.3762/bjoc.15.232"}],"pmid":1,"publication":"Beilstein Journal of Organic Chemistry","article_processing_charge":"No","scopus_import":"1","publication_status":"published","date_published":"2019-10-10T00:00:00Z","date_updated":"2023-08-07T10:34:56Z","page":"2398-2407","external_id":{"pmid":["31666874"]},"month":"10","_id":"13369","type":"journal_article","language":[{"iso":"eng"}],"author":[{"full_name":"Hanopolskyi, Anton I","first_name":"Anton I","last_name":"Hanopolskyi"},{"full_name":"De, Soumen","last_name":"De","first_name":"Soumen"},{"last_name":"Białek","first_name":"Michał J","full_name":"Białek, Michał J"},{"last_name":"Diskin-Posner","first_name":"Yael","full_name":"Diskin-Posner, Yael"},{"last_name":"Avram","first_name":"Liat","full_name":"Avram, Liat"},{"full_name":"Feller, Moran","first_name":"Moran","last_name":"Feller"},{"full_name":"Klajn, Rafal","id":"8e84690e-1e48-11ed-a02b-a1e6fb8bb53b","first_name":"Rafal","last_name":"Klajn"}]},{"volume":19,"citation":{"ama":"Chu Z, Klajn R. Polysilsesquioxane nanowire networks as an “Artificial Solvent” for reversible operation of photochromic molecules. <i>Nano Letters</i>. 2019;19(10):7106-7111. doi:<a href=\"https://doi.org/10.1021/acs.nanolett.9b02642\">10.1021/acs.nanolett.9b02642</a>","mla":"Chu, Zonglin, and Rafal Klajn. “Polysilsesquioxane Nanowire Networks as an ‘Artificial Solvent’ for Reversible Operation of Photochromic Molecules.” <i>Nano Letters</i>, vol. 19, no. 10, American Chemical Society, 2019, pp. 7106–11, doi:<a href=\"https://doi.org/10.1021/acs.nanolett.9b02642\">10.1021/acs.nanolett.9b02642</a>.","apa":"Chu, Z., &#38; Klajn, R. (2019). Polysilsesquioxane nanowire networks as an “Artificial Solvent” for reversible operation of photochromic molecules. <i>Nano Letters</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acs.nanolett.9b02642\">https://doi.org/10.1021/acs.nanolett.9b02642</a>","ieee":"Z. Chu and R. Klajn, “Polysilsesquioxane nanowire networks as an ‘Artificial Solvent’ for reversible operation of photochromic molecules,” <i>Nano Letters</i>, vol. 19, no. 10. American Chemical Society, pp. 7106–7111, 2019.","chicago":"Chu, Zonglin, and Rafal Klajn. “Polysilsesquioxane Nanowire Networks as an ‘Artificial Solvent’ for Reversible Operation of Photochromic Molecules.” <i>Nano Letters</i>. American Chemical Society, 2019. <a href=\"https://doi.org/10.1021/acs.nanolett.9b02642\">https://doi.org/10.1021/acs.nanolett.9b02642</a>.","short":"Z. Chu, R. Klajn, Nano Letters 19 (2019) 7106–7111.","ista":"Chu Z, Klajn R. 2019. Polysilsesquioxane nanowire networks as an “Artificial Solvent” for reversible operation of photochromic molecules. Nano Letters. 19(10), 7106–7111."},"doi":"10.1021/acs.nanolett.9b02642","title":"Polysilsesquioxane nanowire networks as an “Artificial Solvent” for reversible operation of photochromic molecules","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","abstract":[{"text":"Efficient isomerization of photochromic molecules often requires conformational freedom and is typically not available under solvent-free conditions. Here, we report a general methodology allowing for reversible switching of such molecules on the surfaces of solid materials. Our method is based on dispersing photochromic compounds within polysilsesquioxane nanowire networks (PNNs), which can be fabricated as transparent, highly porous, micrometer-thick layers on various substrates. We found that azobenzene switching within the PNNs proceeded unusually fast compared with the same molecules in liquid solvents. Efficient isomerization of another photochromic system, spiropyran, from a colorless to a colored form was used to create reversible images in PNN-coated glass. The coloration reaction could be induced with sunlight and is of interest for developing “smart” windows.","lang":"eng"}],"intvolume":"        19","publisher":"American Chemical Society","extern":"1","date_created":"2023-08-01T09:38:23Z","keyword":["Mechanical Engineering","Condensed Matter Physics","General Materials Science","General Chemistry","Bioengineering"],"article_type":"original","year":"2019","day":"20","external_id":{"pmid":["31539469"]},"month":"09","publication_status":"published","scopus_import":"1","date_published":"2019-09-20T00:00:00Z","publication":"Nano Letters","article_processing_charge":"No","page":"7106-7111","date_updated":"2023-08-07T10:39:34Z","author":[{"full_name":"Chu, Zonglin","last_name":"Chu","first_name":"Zonglin"},{"id":"8e84690e-1e48-11ed-a02b-a1e6fb8bb53b","first_name":"Rafal","last_name":"Klajn","full_name":"Klajn, Rafal"}],"language":[{"iso":"eng"}],"_id":"13370","type":"journal_article","publication_identifier":{"eissn":["1530-6992"],"issn":["1530-6984"]},"pmid":1,"issue":"10","oa_version":"None","quality_controlled":"1"},{"doi":"10.1016/j.chempr.2019.08.012","citation":{"ieee":"M. J. Białek and R. Klajn, “Diamond grows up,” <i>Chem</i>, vol. 5, no. 9. Elsevier, pp. 2283–2285, 2019.","chicago":"Białek, Michał J., and Rafal Klajn. “Diamond Grows Up.” <i>Chem</i>. Elsevier, 2019. <a href=\"https://doi.org/10.1016/j.chempr.2019.08.012\">https://doi.org/10.1016/j.chempr.2019.08.012</a>.","apa":"Białek, M. J., &#38; Klajn, R. (2019). Diamond grows up. <i>Chem</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.chempr.2019.08.012\">https://doi.org/10.1016/j.chempr.2019.08.012</a>","short":"M.J. Białek, R. Klajn, Chem 5 (2019) 2283–2285.","ista":"Białek MJ, Klajn R. 2019. Diamond grows up. Chem. 5(9), 2283–2285.","ama":"Białek MJ, Klajn R. Diamond grows up. <i>Chem</i>. 2019;5(9):2283-2285. doi:<a href=\"https://doi.org/10.1016/j.chempr.2019.08.012\">10.1016/j.chempr.2019.08.012</a>","mla":"Białek, Michał J., and Rafal Klajn. “Diamond Grows Up.” <i>Chem</i>, vol. 5, no. 9, Elsevier, 2019, pp. 2283–85, doi:<a href=\"https://doi.org/10.1016/j.chempr.2019.08.012\">10.1016/j.chempr.2019.08.012</a>."},"volume":5,"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"Diamond grows up","extern":"1","publisher":"Elsevier","intvolume":"         5","abstract":[{"lang":"eng","text":"Diamondoid nanoporous crystals represent a synthetically challenging class of materials that typically have been obtained from tetrahedral building blocks. In this issue of Chem, Stoddart and coworkers demonstrate that it is possible to generate diamondoid frameworks from a hexacationic building block lacking a tetrahedral symmetry. These results highlight the great potential of self-assembly for rapidly transforming small molecules into structurally complex functional materials."}],"day":"12","year":"2019","article_type":"original","date_created":"2023-08-01T09:38:38Z","keyword":["Materials Chemistry","Biochemistry (medical)","General Chemical Engineering","Environmental Chemistry","Biochemistry","General Chemistry"],"date_updated":"2023-08-07T10:46:50Z","page":"2283-2285","article_processing_charge":"No","publication":"Chem","publication_status":"published","scopus_import":"1","date_published":"2019-09-12T00:00:00Z","month":"09","type":"journal_article","_id":"13371","language":[{"iso":"eng"}],"author":[{"full_name":"Białek, Michał J.","last_name":"Białek","first_name":"Michał J."},{"full_name":"Klajn, Rafal","id":"8e84690e-1e48-11ed-a02b-a1e6fb8bb53b","first_name":"Rafal","last_name":"Klajn"}],"publication_identifier":{"eissn":["2451-9294"],"issn":["2451-9308"]},"quality_controlled":"1","oa_version":"Published Version","oa":1,"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1016/j.chempr.2019.08.012"}],"issue":"9"},{"publication_identifier":{"eissn":["1460-4744"],"issn":["0306-0012"]},"main_file_link":[{"url":"https://doi.org/10.1039/C8CS00787J","open_access":"1"}],"issue":"5","pmid":1,"oa_version":"Published Version","quality_controlled":"1","oa":1,"month":"01","external_id":{"pmid":["30688963"]},"page":"1342-1361","date_updated":"2023-08-07T10:48:31Z","article_processing_charge":"No","publication":"Chemical Society Reviews","publication_status":"published","date_published":"2019-01-28T00:00:00Z","scopus_import":"1","language":[{"iso":"eng"}],"author":[{"full_name":"Grzelczak, Marek","first_name":"Marek","last_name":"Grzelczak"},{"full_name":"Liz-Marzán, Luis M.","first_name":"Luis M.","last_name":"Liz-Marzán"},{"id":"8e84690e-1e48-11ed-a02b-a1e6fb8bb53b","last_name":"Klajn","first_name":"Rafal","full_name":"Klajn, Rafal"}],"type":"journal_article","_id":"13372","abstract":[{"lang":"eng","text":"The capacity to respond or adapt to environmental changes is an intrinsic property of living systems that comprise highly-connected subcomponents communicating through chemical networks. The development of responsive synthetic systems is a relatively new research area that covers different disciplines, among which nanochemistry brings conceptually new demonstrations. Especially attractive are ligand-protected gold nanoparticles, which have been extensively used over the last decade as building blocks in constructing superlattices or dynamic aggregates, under the effect of an applied stimulus. To reflect the importance of surface chemistry and nanoparticle core composition in the dynamic self-assembly of nanoparticles, we provide here an overview of various available stimuli, as tools for synthetic chemists to exploit. Along with this task, the review starts with the use of chemical stimuli such as solvent, pH, gases, metal ions or biomolecules. It then focuses on physical stimuli: temperature, magnetic and electric fields, as well as light. To reflect on the increasing complexity of current architectures, we discuss systems that are responsive to more than one stimulus, to finally encourage further research by proposing future challenges."}],"intvolume":"        48","extern":"1","publisher":"Royal Society of Chemistry","date_created":"2023-08-01T09:38:52Z","keyword":["General Chemistry"],"day":"28","year":"2019","article_type":"original","citation":{"short":"M. Grzelczak, L.M. Liz-Marzán, R. Klajn, Chemical Society Reviews 48 (2019) 1342–1361.","ista":"Grzelczak M, Liz-Marzán LM, Klajn R. 2019. Stimuli-responsive self-assembly of nanoparticles. Chemical Society Reviews. 48(5), 1342–1361.","ieee":"M. Grzelczak, L. M. Liz-Marzán, and R. Klajn, “Stimuli-responsive self-assembly of nanoparticles,” <i>Chemical Society Reviews</i>, vol. 48, no. 5. Royal Society of Chemistry, pp. 1342–1361, 2019.","chicago":"Grzelczak, Marek, Luis M. Liz-Marzán, and Rafal Klajn. “Stimuli-Responsive Self-Assembly of Nanoparticles.” <i>Chemical Society Reviews</i>. Royal Society of Chemistry, 2019. <a href=\"https://doi.org/10.1039/c8cs00787j\">https://doi.org/10.1039/c8cs00787j</a>.","apa":"Grzelczak, M., Liz-Marzán, L. M., &#38; Klajn, R. (2019). Stimuli-responsive self-assembly of nanoparticles. <i>Chemical Society Reviews</i>. Royal Society of Chemistry. <a href=\"https://doi.org/10.1039/c8cs00787j\">https://doi.org/10.1039/c8cs00787j</a>","mla":"Grzelczak, Marek, et al. “Stimuli-Responsive Self-Assembly of Nanoparticles.” <i>Chemical Society Reviews</i>, vol. 48, no. 5, Royal Society of Chemistry, 2019, pp. 1342–61, doi:<a href=\"https://doi.org/10.1039/c8cs00787j\">10.1039/c8cs00787j</a>.","ama":"Grzelczak M, Liz-Marzán LM, Klajn R. Stimuli-responsive self-assembly of nanoparticles. <i>Chemical Society Reviews</i>. 2019;48(5):1342-1361. doi:<a href=\"https://doi.org/10.1039/c8cs00787j\">10.1039/c8cs00787j</a>"},"volume":48,"doi":"10.1039/c8cs00787j","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","title":"Stimuli-responsive self-assembly of nanoparticles"},{"title":"Supramolecular control of azobenzene switching on nanoparticles","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","doi":"10.1021/jacs.8b09638","volume":141,"citation":{"ama":"Chu Z, Han Y, Bian T, De S, Král P, Klajn R. Supramolecular control of azobenzene switching on nanoparticles. <i>Journal of the American Chemical Society</i>. 2019;141(5):1949-1960. doi:<a href=\"https://doi.org/10.1021/jacs.8b09638\">10.1021/jacs.8b09638</a>","mla":"Chu, Zonglin, et al. “Supramolecular Control of Azobenzene Switching on Nanoparticles.” <i>Journal of the American Chemical Society</i>, vol. 141, no. 5, American Chemical Society, 2019, pp. 1949–60, doi:<a href=\"https://doi.org/10.1021/jacs.8b09638\">10.1021/jacs.8b09638</a>.","apa":"Chu, Z., Han, Y., Bian, T., De, S., Král, P., &#38; Klajn, R. (2019). Supramolecular control of azobenzene switching on nanoparticles. <i>Journal of the American Chemical Society</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/jacs.8b09638\">https://doi.org/10.1021/jacs.8b09638</a>","chicago":"Chu, Zonglin, Yanxiao Han, Tong Bian, Soumen De, Petr Král, and Rafal Klajn. “Supramolecular Control of Azobenzene Switching on Nanoparticles.” <i>Journal of the American Chemical Society</i>. American Chemical Society, 2019. <a href=\"https://doi.org/10.1021/jacs.8b09638\">https://doi.org/10.1021/jacs.8b09638</a>.","ieee":"Z. Chu, Y. Han, T. Bian, S. De, P. Král, and R. Klajn, “Supramolecular control of azobenzene switching on nanoparticles,” <i>Journal of the American Chemical Society</i>, vol. 141, no. 5. American Chemical Society, pp. 1949–1960, 2019.","ista":"Chu Z, Han Y, Bian T, De S, Král P, Klajn R. 2019. Supramolecular control of azobenzene switching on nanoparticles. Journal of the American Chemical Society. 141(5), 1949–1960.","short":"Z. Chu, Y. Han, T. Bian, S. De, P. Král, R. Klajn, Journal of the American Chemical Society 141 (2019) 1949–1960."},"article_type":"original","year":"2019","day":"06","date_created":"2023-08-01T09:39:19Z","keyword":["Colloid and Surface Chemistry","Biochemistry","General Chemistry","Catalysis"],"publisher":"American Chemical Society","extern":"1","intvolume":"       141","abstract":[{"text":"The reversible photoisomerization of azobenzene has been utilized to construct a plethora of systems in which optical, electronic, catalytic, and other properties can be controlled by light. However, owing to azobenzene’s hydrophobic nature, most of these examples have been realized only in organic solvents, and systems operating in water are relatively scarce. Here, we show that by coadsorbing the inherently hydrophobic azobenzenes with water-solubilizing ligands on the same nanoparticulate platforms, it is possible to render them essentially water-soluble. To this end, we developed a modified nanoparticle functionalization procedure allowing us to precisely fine-tune the amount of azobenzene on the functionalized nanoparticles. Molecular dynamics simulations helped us to identify two distinct supramolecular architectures (depending on the length of the background ligand) on these nanoparticles, which can explain their excellent aqueous solubilities. Azobenzenes adsorbed on these water-soluble nanoparticles exhibit highly reversible photoisomerization upon exposure to UV and visible light. Importantly, the mixed-monolayer approach allowed us to systematically investigate how the background ligand affects the switching properties of azobenzene. We found that the nature of the background ligand has a profound effect on the kinetics of azobenzene switching. For example, a hydroxy-terminated background ligand is capable of accelerating the back-isomerization reaction by more than 6000-fold. These results pave the way toward the development of novel light-responsive nanomaterials operating in aqueous media and, in the long run, in biological environments.","lang":"eng"}],"_id":"13373","type":"journal_article","language":[{"iso":"eng"}],"author":[{"full_name":"Chu, Zonglin","last_name":"Chu","first_name":"Zonglin"},{"full_name":"Han, Yanxiao","last_name":"Han","first_name":"Yanxiao"},{"first_name":"Tong","last_name":"Bian","full_name":"Bian, Tong"},{"full_name":"De, Soumen","first_name":"Soumen","last_name":"De"},{"last_name":"Král","first_name":"Petr","full_name":"Král, Petr"},{"full_name":"Klajn, Rafal","id":"8e84690e-1e48-11ed-a02b-a1e6fb8bb53b","last_name":"Klajn","first_name":"Rafal"}],"scopus_import":"1","publication_status":"published","date_published":"2019-02-06T00:00:00Z","article_processing_charge":"No","publication":"Journal of the American Chemical Society","date_updated":"2023-08-07T10:51:12Z","page":"1949-1960","external_id":{"pmid":["30595017"]},"month":"02","quality_controlled":"1","oa_version":"Published Version","pmid":1,"issue":"5","publication_identifier":{"issn":["0002-7863"],"eissn":["1520-5126"]}},{"title":"The diverse lives of progenitors of hydrogen-rich core-collapse supernovae: The role of binary interaction","status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","doi":"10.1051/0004-6361/201935854","arxiv":1,"volume":631,"citation":{"mla":"Zapartas, Emmanouil, et al. “The Diverse Lives of Progenitors of Hydrogen-Rich Core-Collapse Supernovae: The Role of Binary Interaction.” <i>Astronomy &#38; Astrophysics</i>, vol. 631, A5, EDP Sciences, 2019, doi:<a href=\"https://doi.org/10.1051/0004-6361/201935854\">10.1051/0004-6361/201935854</a>.","ama":"Zapartas E, de Mink SE, Justham S, et al. The diverse lives of progenitors of hydrogen-rich core-collapse supernovae: The role of binary interaction. <i>Astronomy &#38; Astrophysics</i>. 2019;631. doi:<a href=\"https://doi.org/10.1051/0004-6361/201935854\">10.1051/0004-6361/201935854</a>","ista":"Zapartas E, de Mink SE, Justham S, Smith N, de Koter A, Renzo M, Arcavi I, Farmer R, Götberg YLL, Toonen S. 2019. The diverse lives of progenitors of hydrogen-rich core-collapse supernovae: The role of binary interaction. Astronomy &#38; Astrophysics. 631, A5.","short":"E. Zapartas, S.E. de Mink, S. Justham, N. Smith, A. de Koter, M. Renzo, I. Arcavi, R. Farmer, Y.L.L. Götberg, S. Toonen, Astronomy &#38; Astrophysics 631 (2019).","apa":"Zapartas, E., de Mink, S. E., Justham, S., Smith, N., de Koter, A., Renzo, M., … Toonen, S. (2019). The diverse lives of progenitors of hydrogen-rich core-collapse supernovae: The role of binary interaction. <i>Astronomy &#38; Astrophysics</i>. EDP Sciences. <a href=\"https://doi.org/10.1051/0004-6361/201935854\">https://doi.org/10.1051/0004-6361/201935854</a>","chicago":"Zapartas, Emmanouil, Selma E. de Mink, Stephen Justham, Nathan Smith, Alex de Koter, Mathieu Renzo, Iair Arcavi, Rob Farmer, Ylva Louise Linsdotter Götberg, and Silvia Toonen. “The Diverse Lives of Progenitors of Hydrogen-Rich Core-Collapse Supernovae: The Role of Binary Interaction.” <i>Astronomy &#38; Astrophysics</i>. EDP Sciences, 2019. <a href=\"https://doi.org/10.1051/0004-6361/201935854\">https://doi.org/10.1051/0004-6361/201935854</a>.","ieee":"E. Zapartas <i>et al.</i>, “The diverse lives of progenitors of hydrogen-rich core-collapse supernovae: The role of binary interaction,” <i>Astronomy &#38; Astrophysics</i>, vol. 631. EDP Sciences, 2019."},"article_type":"original","year":"2019","day":"20","date_created":"2023-08-03T10:13:52Z","keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"publisher":"EDP Sciences","extern":"1","abstract":[{"lang":"eng","text":"Hydrogen-rich supernovae, known as Type II (SNe II), are the most common class of explosions observed following the collapse of the core of massive stars. We used analytical estimates and population synthesis simulations to assess the fraction of SNe II progenitors that are expected to have exchanged mass with a companion prior to explosion. We estimate that 1/3 to 1/2 of SN II progenitors have a history of mass exchange with a binary companion before exploding. The dominant binary channels leading to SN II progenitors involve the merger of binary stars. Mergers are expected to produce a diversity of SN II progenitor characteristics, depending on the evolutionary timing and properties of the merger. Alternatively, SN II progenitors from interacting binaries may have accreted mass from their companion, and subsequently been ejected from the binary system after their companion exploded. We show that the overall fraction of SN II progenitors that are predicted to have experienced binary interaction is robust against the main physical uncertainties in our models. However, the relative importance of different binary evolutionary channels is affected by changing physical assumptions. We further discuss ways in which binarity might contribute to the observed diversity of SNe II by considering potential observational signatures arising from each binary channel. For supernovae which have a substantial H-rich envelope at explosion (i.e., excluding Type IIb SNe), a surviving non-compact companion would typically indicate that the supernova progenitor star was in a wide, non-interacting binary. We argue that a significant fraction of even Type II-P SNe are expected to have gained mass from a companion prior to explosion."}],"intvolume":"       631","_id":"13468","type":"journal_article","author":[{"full_name":"Zapartas, Emmanouil","last_name":"Zapartas","first_name":"Emmanouil"},{"full_name":"de Mink, Selma E.","last_name":"de Mink","first_name":"Selma E."},{"full_name":"Justham, Stephen","first_name":"Stephen","last_name":"Justham"},{"full_name":"Smith, Nathan","last_name":"Smith","first_name":"Nathan"},{"last_name":"de Koter","first_name":"Alex","full_name":"de Koter, Alex"},{"full_name":"Renzo, Mathieu","last_name":"Renzo","first_name":"Mathieu"},{"full_name":"Arcavi, Iair","first_name":"Iair","last_name":"Arcavi"},{"full_name":"Farmer, Rob","first_name":"Rob","last_name":"Farmer"},{"first_name":"Ylva Louise Linsdotter","last_name":"Götberg","id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d","full_name":"Götberg, Ylva Louise Linsdotter","orcid":"0000-0002-6960-6911"},{"first_name":"Silvia","last_name":"Toonen","full_name":"Toonen, Silvia"}],"language":[{"iso":"eng"}],"publication_status":"published","date_published":"2019-11-20T00:00:00Z","scopus_import":"1","publication":"Astronomy & Astrophysics","article_processing_charge":"No","date_updated":"2023-08-09T12:36:09Z","external_id":{"arxiv":["1907.06687"]},"month":"11","quality_controlled":"1","oa_version":"Published Version","oa":1,"article_number":"A5","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1051/0004-6361/201935854"}],"publication_identifier":{"issn":["0004-6361"],"eissn":["1432-0746"]}},{"date_created":"2023-08-03T10:14:00Z","keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"article_type":"original","year":"2019","day":"17","intvolume":"       629","abstract":[{"text":"Stars stripped of their envelopes from interaction with a binary companion emit a significant fraction of their radiation as ionizing photons. They are potentially important stellar sources of ionizing radiation, however, they are still often neglected in spectral synthesis simulations or simulations of stellar feedback. In anticipating the large datasets of galaxy spectra from the upcoming James Webb Space Telescope, we modeled the radiative contribution from stripped stars by using detailed evolutionary and spectral models. We estimated their impact on the integrated spectra and specifically on the emission rates of H I-, He I-, and He II-ionizing photons from stellar populations. We find that stripped stars have the largest impact on the ionizing spectrum of a population in which star formation halted several Myr ago. In such stellar populations, stripped stars dominate the emission of ionizing photons, mimicking a younger stellar population in which massive stars are still present. Our models also suggest that stripped stars have harder ionizing spectra than massive stars. The additional ionizing radiation, with which stripped stars contribute affects observable properties that are related to the emission of ionizing photons from stellar populations. In co-eval stellar populations, the ionizing radiation from stripped stars increases the ionization parameter and the production efficiency of hydrogen ionizing photons. They also cause high values for these parameters for about ten times longer than what is predicted for massive stars. The effect on properties related to non-ionizing wavelengths is less pronounced, such as on the ultraviolet continuum slope or stellar contribution to emission lines. However, the hard ionizing radiation from stripped stars likely introduces a characteristic ionization structure of the nebula, which leads to the emission of highly ionized elements such as O2+ and C3+. We, therefore, expect that the presence of stripped stars affects the location in the BPT diagram and the diagnostic ratio of O III to O II nebular emission lines. Our models are publicly available through CDS database and on the STARBURST99 website.","lang":"eng"}],"publisher":"EDP Sciences","extern":"1","title":"The impact of stars stripped in binaries on the integrated spectra of stellar populations","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","volume":629,"citation":{"ama":"Götberg YLL, de Mink SE, Groh JH, Leitherer C, Norman C. The impact of stars stripped in binaries on the integrated spectra of stellar populations. <i>Astronomy &#38; Astrophysics</i>. 2019;629. doi:<a href=\"https://doi.org/10.1051/0004-6361/201834525\">10.1051/0004-6361/201834525</a>","mla":"Götberg, Ylva Louise Linsdotter, et al. “The Impact of Stars Stripped in Binaries on the Integrated Spectra of Stellar Populations.” <i>Astronomy &#38; Astrophysics</i>, vol. 629, A134, EDP Sciences, 2019, doi:<a href=\"https://doi.org/10.1051/0004-6361/201834525\">10.1051/0004-6361/201834525</a>.","apa":"Götberg, Y. L. L., de Mink, S. E., Groh, J. H., Leitherer, C., &#38; Norman, C. (2019). The impact of stars stripped in binaries on the integrated spectra of stellar populations. <i>Astronomy &#38; Astrophysics</i>. EDP Sciences. <a href=\"https://doi.org/10.1051/0004-6361/201834525\">https://doi.org/10.1051/0004-6361/201834525</a>","ieee":"Y. L. L. Götberg, S. E. de Mink, J. H. Groh, C. Leitherer, and C. Norman, “The impact of stars stripped in binaries on the integrated spectra of stellar populations,” <i>Astronomy &#38; Astrophysics</i>, vol. 629. EDP Sciences, 2019.","chicago":"Götberg, Ylva Louise Linsdotter, S. E. de Mink, J. H. Groh, C. Leitherer, and C. Norman. “The Impact of Stars Stripped in Binaries on the Integrated Spectra of Stellar Populations.” <i>Astronomy &#38; Astrophysics</i>. EDP Sciences, 2019. <a href=\"https://doi.org/10.1051/0004-6361/201834525\">https://doi.org/10.1051/0004-6361/201834525</a>.","ista":"Götberg YLL, de Mink SE, Groh JH, Leitherer C, Norman C. 2019. The impact of stars stripped in binaries on the integrated spectra of stellar populations. Astronomy &#38; Astrophysics. 629, A134.","short":"Y.L.L. Götberg, S.E. de Mink, J.H. Groh, C. Leitherer, C. Norman, Astronomy &#38; Astrophysics 629 (2019)."},"doi":"10.1051/0004-6361/201834525","arxiv":1,"article_number":"A134","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1051/0004-6361/201834525"}],"oa":1,"oa_version":"Published Version","quality_controlled":"1","publication_identifier":{"issn":["0004-6361"],"eissn":["1432-0746"]},"author":[{"full_name":"Götberg, Ylva Louise Linsdotter","orcid":"0000-0002-6960-6911","last_name":"Götberg","first_name":"Ylva Louise Linsdotter","id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d"},{"full_name":"de Mink, S. E.","last_name":"de Mink","first_name":"S. E."},{"full_name":"Groh, J. H.","first_name":"J. H.","last_name":"Groh"},{"full_name":"Leitherer, C.","last_name":"Leitherer","first_name":"C."},{"last_name":"Norman","first_name":"C.","full_name":"Norman, C."}],"language":[{"iso":"eng"}],"_id":"13469","type":"journal_article","external_id":{"arxiv":["1908.06102"]},"month":"09","publication_status":"published","scopus_import":"1","date_published":"2019-09-17T00:00:00Z","article_processing_charge":"No","publication":"Astronomy & Astrophysics","date_updated":"2023-08-09T12:34:11Z"},{"keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"date_created":"2023-08-03T10:14:09Z","day":"16","year":"2019","article_type":"original","intvolume":"       627","abstract":[{"lang":"eng","text":"Context. Massive Wolf–Rayet (WR) stars dominate the radiative and mechanical energy budget of galaxies and probe a critical phase in the evolution of massive stars prior to core collapse. It is not known whether core He-burning WR stars (classical WR; cWR) form predominantly through wind stripping (w-WR) or binary stripping (b-WR). Whereas spectroscopy of WR binaries has so-far largely been avoided because of its complexity, our study focuses on the 44 WR binaries and binary candidates of the Large Magellanic Cloud (LMC; metallicity Z ≈ 0.5 Z⊙), which were identified on the basis of radial velocity variations, composite spectra, or high X-ray luminosities.\r\n\r\nAims. Relying on a diverse spectroscopic database, we aim to derive the physical and orbital parameters of our targets, confronting evolution models of evolved massive stars at subsolar metallicity and constraining the impact of binary interaction in forming these stars.\r\n\r\nMethods. Spectroscopy was performed using the Potsdam Wolf–Rayet (PoWR) code and cross-correlation techniques. Disentanglement was performed using the code Spectangular or the shift-and-add algorithm. Evolutionary status was interpreted using the Binary Population and Spectral Synthesis (BPASS) code, exploring binary interaction and chemically homogeneous evolution.\r\n\r\nResults. Among our sample, 28/44 objects show composite spectra and are analyzed as such. An additional five targets show periodically moving WR primaries but no detected companions (SB1); two (BAT99 99 and 112) are potential WR + compact-object candidates owing to their high X-ray luminosities. We cannot confirm the binary nature of the remaining 11 candidates. About two-thirds of the WN components in binaries are identified as cWR, and one-third as hydrogen-burning WR stars. We establish metallicity-dependent mass-loss recipes, which broadly agree with those recently derived for single WN stars, and in which so-called WN3/O3 stars are clear outliers. We estimate that 45  ±  30% of the cWR stars in our sample have interacted with a companion via mass transfer. However, only ≈12  ±  7% of the cWR stars in our sample naively appear to have formed purely owing to stripping via a companion (12% b-WR). Assuming that apparently single WR stars truly formed as single stars, this comprises ≈4% of the whole LMC WN population, which is about ten times less than expected. No obvious differences in the properties of single and binary WN stars, whose luminosities extend down to log L ≈ 5.2 [L⊙], are apparent. With the exception of a few systems (BAT99 19, 49, and 103), the equatorial rotational velocities of the OB-type companions are moderate (veq ≲ 250 km s−1) and challenge standard formalisms of angular-momentum accretion. For most objects, chemically homogeneous evolution can be rejected for the secondary, but not for the WR progenitor.\r\n\r\nConclusions. No obvious dichotomy in the locations of apparently single and binary WN stars on the Hertzsprung-Russell diagram is apparent. According to commonly used stellar evolution models (BPASS, Geneva), most apparently single WN stars could not have formed as single stars, implying that they were stripped by an undetected companion. Otherwise, it must follow that pre-WR mass-loss/mixing (e.g., during the red supergiant phase) are strongly underestimated in standard stellar evolution models."}],"extern":"1","publisher":"EDP Sciences","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","title":"The Wolf–Rayet binaries of the nitrogen sequence in the Large Magellanic Cloud","citation":{"short":"T. Shenar, D.P. Sablowski, R. Hainich, H. Todt, A.F.J. Moffat, L.M. Oskinova, V. Ramachandran, H. Sana, A.A.C. Sander, O. Schnurr, N. St-Louis, D. Vanbeveren, Y.L.L. Götberg, W.-R. Hamann, Astronomy &#38; Astrophysics 627 (2019).","ista":"Shenar T, Sablowski DP, Hainich R, Todt H, Moffat AFJ, Oskinova LM, Ramachandran V, Sana H, Sander AAC, Schnurr O, St-Louis N, Vanbeveren D, Götberg YLL, Hamann W-R. 2019. The Wolf–Rayet binaries of the nitrogen sequence in the Large Magellanic Cloud. Astronomy &#38; Astrophysics. 627, A151.","chicago":"Shenar, T., D. P. Sablowski, R. Hainich, H. Todt, A. F. J. Moffat, L. M. Oskinova, V. Ramachandran, et al. “The Wolf–Rayet Binaries of the Nitrogen Sequence in the Large Magellanic Cloud.” <i>Astronomy &#38; Astrophysics</i>. EDP Sciences, 2019. <a href=\"https://doi.org/10.1051/0004-6361/201935684\">https://doi.org/10.1051/0004-6361/201935684</a>.","ieee":"T. Shenar <i>et al.</i>, “The Wolf–Rayet binaries of the nitrogen sequence in the Large Magellanic Cloud,” <i>Astronomy &#38; Astrophysics</i>, vol. 627. EDP Sciences, 2019.","apa":"Shenar, T., Sablowski, D. P., Hainich, R., Todt, H., Moffat, A. F. J., Oskinova, L. M., … Hamann, W.-R. (2019). The Wolf–Rayet binaries of the nitrogen sequence in the Large Magellanic Cloud. <i>Astronomy &#38; Astrophysics</i>. EDP Sciences. <a href=\"https://doi.org/10.1051/0004-6361/201935684\">https://doi.org/10.1051/0004-6361/201935684</a>","mla":"Shenar, T., et al. “The Wolf–Rayet Binaries of the Nitrogen Sequence in the Large Magellanic Cloud.” <i>Astronomy &#38; Astrophysics</i>, vol. 627, A151, EDP Sciences, 2019, doi:<a href=\"https://doi.org/10.1051/0004-6361/201935684\">10.1051/0004-6361/201935684</a>.","ama":"Shenar T, Sablowski DP, Hainich R, et al. The Wolf–Rayet binaries of the nitrogen sequence in the Large Magellanic Cloud. <i>Astronomy &#38; Astrophysics</i>. 2019;627. doi:<a href=\"https://doi.org/10.1051/0004-6361/201935684\">10.1051/0004-6361/201935684</a>"},"volume":627,"doi":"10.1051/0004-6361/201935684","main_file_link":[{"url":"https://doi.org/10.1051/0004-6361/201935684","open_access":"1"}],"related_material":{"link":[{"url":"https://doi.org/10.1051/0004-6361/201935684e","relation":"erratum"}]},"article_number":"A151","oa":1,"quality_controlled":"1","oa_version":"Published Version","publication_identifier":{"issn":["0004-6361"],"eissn":["1432-0746"]},"author":[{"last_name":"Shenar","first_name":"T.","full_name":"Shenar, T."},{"last_name":"Sablowski","first_name":"D. P.","full_name":"Sablowski, D. P."},{"last_name":"Hainich","first_name":"R.","full_name":"Hainich, R."},{"full_name":"Todt, H.","last_name":"Todt","first_name":"H."},{"full_name":"Moffat, A. F. J.","first_name":"A. F. J.","last_name":"Moffat"},{"full_name":"Oskinova, L. M.","last_name":"Oskinova","first_name":"L. M."},{"full_name":"Ramachandran, V.","last_name":"Ramachandran","first_name":"V."},{"full_name":"Sana, H.","last_name":"Sana","first_name":"H."},{"first_name":"A. A. C.","last_name":"Sander","full_name":"Sander, A. A. C."},{"last_name":"Schnurr","first_name":"O.","full_name":"Schnurr, O."},{"first_name":"N.","last_name":"St-Louis","full_name":"St-Louis, N."},{"full_name":"Vanbeveren, D.","last_name":"Vanbeveren","first_name":"D."},{"id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d","last_name":"Götberg","first_name":"Ylva Louise Linsdotter","full_name":"Götberg, Ylva Louise Linsdotter","orcid":"0000-0002-6960-6911"},{"first_name":"W.-R.","last_name":"Hamann","full_name":"Hamann, W.-R."}],"language":[{"iso":"eng"}],"type":"journal_article","_id":"13470","month":"07","date_updated":"2023-08-09T12:29:58Z","article_processing_charge":"No","publication":"Astronomy & Astrophysics","date_published":"2019-07-16T00:00:00Z","scopus_import":"1","publication_status":"published"},{"title":"Massive runaway and walkaway stars","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","doi":"10.1051/0004-6361/201833297","arxiv":1,"volume":624,"citation":{"mla":"Renzo, M., et al. “Massive Runaway and Walkaway Stars.” <i>Astronomy &#38; Astrophysics</i>, vol. 624, A66, EDP Sciences, 2019, doi:<a href=\"https://doi.org/10.1051/0004-6361/201833297\">10.1051/0004-6361/201833297</a>.","ama":"Renzo M, Zapartas E, de Mink SE, et al. Massive runaway and walkaway stars. <i>Astronomy &#38; Astrophysics</i>. 2019;624. doi:<a href=\"https://doi.org/10.1051/0004-6361/201833297\">10.1051/0004-6361/201833297</a>","ista":"Renzo M, Zapartas E, de Mink SE, Götberg YLL, Justham S, Farmer RJ, Izzard RG, Toonen S, Sana H. 2019. Massive runaway and walkaway stars. Astronomy &#38; Astrophysics. 624, A66.","short":"M. Renzo, E. Zapartas, S.E. de Mink, Y.L.L. Götberg, S. Justham, R.J. Farmer, R.G. Izzard, S. Toonen, H. Sana, Astronomy &#38; Astrophysics 624 (2019).","chicago":"Renzo, M., E. Zapartas, S. E. de Mink, Ylva Louise Linsdotter Götberg, S. Justham, R. J. Farmer, R. G. Izzard, S. Toonen, and H. Sana. “Massive Runaway and Walkaway Stars.” <i>Astronomy &#38; Astrophysics</i>. EDP Sciences, 2019. <a href=\"https://doi.org/10.1051/0004-6361/201833297\">https://doi.org/10.1051/0004-6361/201833297</a>.","ieee":"M. Renzo <i>et al.</i>, “Massive runaway and walkaway stars,” <i>Astronomy &#38; Astrophysics</i>, vol. 624. EDP Sciences, 2019.","apa":"Renzo, M., Zapartas, E., de Mink, S. E., Götberg, Y. L. L., Justham, S., Farmer, R. J., … Sana, H. (2019). Massive runaway and walkaway stars. <i>Astronomy &#38; Astrophysics</i>. EDP Sciences. <a href=\"https://doi.org/10.1051/0004-6361/201833297\">https://doi.org/10.1051/0004-6361/201833297</a>"},"article_type":"original","year":"2019","day":"11","keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"date_created":"2023-08-03T10:14:18Z","publisher":"EDP Sciences","extern":"1","abstract":[{"lang":"eng","text":"We perform an extensive numerical study of the evolution of massive binary systems to predict the peculiar velocities that stars obtain when their companion collapses and disrupts the system. Our aim is to (i) identify which predictions are robust against model uncertainties and assess their implications, (ii) investigate which physical processes leave a clear imprint and may therefore be constrained observationally, and (iii) provide a suite of publicly available model predictions to allow for the use of kinematic constraints from the Gaia mission. We find that 22+26−8% of all massive binary systems merge prior to the first core-collapse in the system. Of the remainder, 86+11−9% become unbound because of the core-collapse. Remarkably, this rarely produces runaway stars (observationally defined as stars with velocities above 30 km s−1). These are outnumbered by more than an order of magnitude by slower unbound companions, or “walkaway stars”. This is a robust outcome of our simulations and is due to the reversal of the mass ratio prior to the explosion and widening of the orbit, as we show analytically and numerically. For stars more massive than 15 M⊙, we estimate that 10+5−8% are walkaways and only 0.5+1.0−0.4% are runaways, nearly all of which have accreted mass from their companion. Our findings are consistent with earlier studies; however, the low runaway fraction we find is in tension with observed fractions of about 10%. Thus, astrometric data on presently single massive stars can potentially constrain the physics of massive binary evolution. Finally, we show that the high end of the mass distributions of runaway stars is very sensitive to the assumed black hole natal kicks, and we propose this as a potentially stringent test for the explosion mechanism. We also discuss companions remaining bound that can evolve into X-ray and gravitational wave sources."}],"intvolume":"       624","_id":"13471","type":"journal_article","author":[{"first_name":"M.","last_name":"Renzo","full_name":"Renzo, M."},{"full_name":"Zapartas, E.","first_name":"E.","last_name":"Zapartas"},{"full_name":"de Mink, S. E.","first_name":"S. E.","last_name":"de Mink"},{"first_name":"Ylva Louise Linsdotter","last_name":"Götberg","id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d","orcid":"0000-0002-6960-6911","full_name":"Götberg, Ylva Louise Linsdotter"},{"full_name":"Justham, S.","last_name":"Justham","first_name":"S."},{"full_name":"Farmer, R. J.","last_name":"Farmer","first_name":"R. J."},{"last_name":"Izzard","first_name":"R. G.","full_name":"Izzard, R. G."},{"full_name":"Toonen, S.","first_name":"S.","last_name":"Toonen"},{"last_name":"Sana","first_name":"H.","full_name":"Sana, H."}],"language":[{"iso":"eng"}],"date_published":"2019-04-11T00:00:00Z","scopus_import":"1","publication_status":"published","publication":"Astronomy & Astrophysics","article_processing_charge":"No","date_updated":"2023-08-09T12:26:08Z","external_id":{"arxiv":["1804.09164"]},"month":"04","oa_version":"Published Version","quality_controlled":"1","oa":1,"article_number":"A66","main_file_link":[{"url":"https://doi.org/10.1051/0004-6361/201833297","open_access":"1"}],"publication_identifier":{"issn":["0004-6361"],"eissn":["1432-0746"]}},{"article_number":"A34","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1051/0004-6361/201732206"}],"quality_controlled":"1","oa_version":"Published Version","oa":1,"publication_identifier":{"eissn":["1432-0746"],"issn":["0004-6361"]},"language":[{"iso":"eng"}],"author":[{"full_name":"Kerzendorf, Wolfgang E.","last_name":"Kerzendorf","first_name":"Wolfgang E."},{"last_name":"Do","first_name":"Tuan","full_name":"Do, Tuan"},{"last_name":"de Mink","first_name":"Selma E.","full_name":"de Mink, Selma E."},{"id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d","last_name":"Götberg","first_name":"Ylva Louise Linsdotter","orcid":"0000-0002-6960-6911","full_name":"Götberg, Ylva Louise Linsdotter"},{"first_name":"Dan","last_name":"Milisavljevic","full_name":"Milisavljevic, Dan"},{"first_name":"Emmanouil","last_name":"Zapartas","full_name":"Zapartas, Emmanouil"},{"full_name":"Renzo, Mathieu","first_name":"Mathieu","last_name":"Renzo"},{"first_name":"Stephen","last_name":"Justham","full_name":"Justham, Stephen"},{"full_name":"Podsiadlowski, Philipp","first_name":"Philipp","last_name":"Podsiadlowski"},{"last_name":"Fesen","first_name":"Robert A.","full_name":"Fesen, Robert A."}],"_id":"13472","type":"journal_article","external_id":{"arxiv":["1711.00055"]},"month":"03","date_published":"2019-03-27T00:00:00Z","scopus_import":"1","publication_status":"published","article_processing_charge":"No","publication":"Astronomy & Astrophysics","date_updated":"2023-08-09T12:28:17Z","keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"date_created":"2023-08-03T10:14:27Z","article_type":"original","year":"2019","day":"27","abstract":[{"text":"Massive stars in binaries can give rise to extreme phenomena such as X-ray binaries and gravitational wave sources after one or both stars end their lives as core-collapse supernovae. Stars in close orbit around a stellar or compact companion are expected to explode as “stripped-envelope supernovae”, showing no (Type Ib/c) or little (Type IIb) signs of hydrogen in the spectra, because hydrogen-rich progenitors are too large to fit. The physical processes responsible for the stripping process and the fate of the companion are still very poorly understood. Aiming to find new clues, we investigate Cas A, which is a very young (∼340 yr) and near (∼3.4 kpc) remnant of a core-collapse supernova. Cas A has been subject to several searches for possible companions, all unsuccessfully. We present new measurements of the proper motions and photometry of stars in the vicinity based on deep HST ACS/WFC and WFC3-IR data. We identify stellar sources that are close enough in projection but using their proper motions we show that none are compatible with being at the location of center at the time of explosion, in agreement with earlier findings. Our photometric measurements allow us to place much deeper (order-of-magnitude) upper limits on the brightness of possible undetected companions. We systematically compare them with model predictions for a wide variety of scenarios. We can confidently rule out the presence of any stellar companion of any reasonable mass and age (main sequence, pre main sequence or stripped) ruling out what many considered to be likely evolutionary scenarios for Type IIb supernova (SN IIb). More exotic scenarios that predict the presence of a compact companion (white dwarf, neutron star or black hole) are still possible as well as scenarios where the progenitor of Cas A was single at the moment of explosion (either because it was truly single, or resulted from a binary that was disrupted, or from a binary merger). The presence of a compact companion would imply that Cas A is of interest to study exotic outcomes of binary evolution. The single-at-death solution would still require fine-tuning of the process that removed most of the envelope through a mass-loss mechanism yet to be identified. We discuss how future constraints from Gaia and even deeper photometric studies may help to place further constraints.","lang":"eng"}],"intvolume":"       623","publisher":"EDP Sciences","extern":"1","title":"No surviving non-compact stellar companion to Cassiopeia A","status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","volume":623,"citation":{"mla":"Kerzendorf, Wolfgang E., et al. “No Surviving Non-Compact Stellar Companion to Cassiopeia A.” <i>Astronomy &#38; Astrophysics</i>, vol. 623, A34, EDP Sciences, 2019, doi:<a href=\"https://doi.org/10.1051/0004-6361/201732206\">10.1051/0004-6361/201732206</a>.","ama":"Kerzendorf WE, Do T, de Mink SE, et al. No surviving non-compact stellar companion to Cassiopeia A. <i>Astronomy &#38; Astrophysics</i>. 2019;623. doi:<a href=\"https://doi.org/10.1051/0004-6361/201732206\">10.1051/0004-6361/201732206</a>","ista":"Kerzendorf WE, Do T, de Mink SE, Götberg YLL, Milisavljevic D, Zapartas E, Renzo M, Justham S, Podsiadlowski P, Fesen RA. 2019. No surviving non-compact stellar companion to Cassiopeia A. Astronomy &#38; Astrophysics. 623, A34.","short":"W.E. Kerzendorf, T. Do, S.E. de Mink, Y.L.L. Götberg, D. Milisavljevic, E. Zapartas, M. Renzo, S. Justham, P. Podsiadlowski, R.A. Fesen, Astronomy &#38; Astrophysics 623 (2019).","apa":"Kerzendorf, W. E., Do, T., de Mink, S. E., Götberg, Y. L. L., Milisavljevic, D., Zapartas, E., … Fesen, R. A. (2019). No surviving non-compact stellar companion to Cassiopeia A. <i>Astronomy &#38; Astrophysics</i>. EDP Sciences. <a href=\"https://doi.org/10.1051/0004-6361/201732206\">https://doi.org/10.1051/0004-6361/201732206</a>","ieee":"W. E. Kerzendorf <i>et al.</i>, “No surviving non-compact stellar companion to Cassiopeia A,” <i>Astronomy &#38; Astrophysics</i>, vol. 623. EDP Sciences, 2019.","chicago":"Kerzendorf, Wolfgang E., Tuan Do, Selma E. de Mink, Ylva Louise Linsdotter Götberg, Dan Milisavljevic, Emmanouil Zapartas, Mathieu Renzo, Stephen Justham, Philipp Podsiadlowski, and Robert A. Fesen. “No Surviving Non-Compact Stellar Companion to Cassiopeia A.” <i>Astronomy &#38; Astrophysics</i>. EDP Sciences, 2019. <a href=\"https://doi.org/10.1051/0004-6361/201732206\">https://doi.org/10.1051/0004-6361/201732206</a>."},"doi":"10.1051/0004-6361/201732206","arxiv":1}]