[{"keyword":["Space and Planetary Science","Astronomy and Astrophysics","asteroseismology / waves / stars","magnetic field / stars","oscillations / methods","analytical"],"language":[{"iso":"eng"}],"article_number":"A122","month":"03","oa_version":"Preprint","publication":"Astronomy & Astrophysics","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2012.11050"}],"oa":1,"publication_identifier":{"eissn":["1432-0746"],"issn":["0004-6361"]},"type":"journal_article","date_published":"2021-03-18T00:00:00Z","article_type":"original","publisher":"EDP Sciences","quality_controlled":"1","intvolume":"       647","title":"Probing the internal magnetism of stars using asymptotic magneto-asteroseismology","article_processing_charge":"No","date_created":"2022-07-18T12:15:27Z","publication_status":"published","author":[{"first_name":"S.","last_name":"Mathis","full_name":"Mathis, S."},{"id":"d9edb345-f866-11ec-9b37-d119b5234501","full_name":"Bugnet, Lisa Annabelle","orcid":"0000-0003-0142-4000","last_name":"Bugnet","first_name":"Lisa Annabelle"},{"first_name":"V.","last_name":"Prat","full_name":"Prat, V."},{"first_name":"K.","last_name":"Augustson","full_name":"Augustson, K."},{"first_name":"S.","last_name":"Mathur","full_name":"Mathur, S."},{"first_name":"R. A.","last_name":"Garcia","full_name":"Garcia, R. A."}],"scopus_import":"1","_id":"11606","extern":"1","volume":647,"acknowledgement":"The authors thank the referee and Pr. J. Christensen-Dalsgaard for their very constructive comments and remarks that allowed us to improve the article. St. M., L. B., V. P., and K. A. acknowledge support from the European Research Council through ERC grant SPIRE 647383. All the members from CEA acknowledge support from GOLF and PLATO CNES grants of the Astrophysics Division at CEA. S. Mathur acknowledges support by the Ramon y Cajal fellowship number RYC-2015-17697. We made great use of the megyr python package for interfacing MESA and GYRE codes.","abstract":[{"text":"Context. Our knowledge of the dynamics of stars has undergone a revolution through the simultaneous large amount of high-quality photometric observations collected by space-based asteroseismology and ground-based high-precision spectropolarimetry. They allowed us to probe the internal rotation of stars and their surface magnetism in the whole Hertzsprung-Russell diagram. However, new methods should still be developed to probe the deep magnetic fields in these stars.\r\n\r\nAims. Our goal is to provide seismic diagnoses that allow us to probe the internal magnetism of stars.\r\n\r\nMethods. We focused on asymptotic low-frequency gravity modes and high-frequency acoustic modes. Using a first-order perturbative theory, we derived magnetic splittings of their frequencies as explicit functions of stellar parameters.\r\n\r\nResults. As in the case of rotation, we show that asymptotic gravity and acoustic modes can allow us to probe the different components of the magnetic field in the cavities in which they propagate. This again demonstrates the high potential of using mixed-modes when this is possible.","lang":"eng"}],"day":"18","doi":"10.1051/0004-6361/202039180","arxiv":1,"external_id":{"arxiv":["2012.11050"]},"citation":{"short":"S. Mathis, L.A. Bugnet, V. Prat, K. Augustson, S. Mathur, R.A. Garcia, Astronomy &#38; Astrophysics 647 (2021).","mla":"Mathis, S., et al. “Probing the Internal Magnetism of Stars Using Asymptotic Magneto-Asteroseismology.” <i>Astronomy &#38; Astrophysics</i>, vol. 647, A122, EDP Sciences, 2021, doi:<a href=\"https://doi.org/10.1051/0004-6361/202039180\">10.1051/0004-6361/202039180</a>.","ista":"Mathis S, Bugnet LA, Prat V, Augustson K, Mathur S, Garcia RA. 2021. Probing the internal magnetism of stars using asymptotic magneto-asteroseismology. Astronomy &#38; Astrophysics. 647, A122.","ama":"Mathis S, Bugnet LA, Prat V, Augustson K, Mathur S, Garcia RA. Probing the internal magnetism of stars using asymptotic magneto-asteroseismology. <i>Astronomy &#38; Astrophysics</i>. 2021;647. doi:<a href=\"https://doi.org/10.1051/0004-6361/202039180\">10.1051/0004-6361/202039180</a>","apa":"Mathis, S., Bugnet, L. A., Prat, V., Augustson, K., Mathur, S., &#38; Garcia, R. A. (2021). Probing the internal magnetism of stars using asymptotic magneto-asteroseismology. <i>Astronomy &#38; Astrophysics</i>. EDP Sciences. <a href=\"https://doi.org/10.1051/0004-6361/202039180\">https://doi.org/10.1051/0004-6361/202039180</a>","chicago":"Mathis, S., Lisa Annabelle Bugnet, V. Prat, K. Augustson, S. Mathur, and R. A. Garcia. “Probing the Internal Magnetism of Stars Using Asymptotic Magneto-Asteroseismology.” <i>Astronomy &#38; Astrophysics</i>. EDP Sciences, 2021. <a href=\"https://doi.org/10.1051/0004-6361/202039180\">https://doi.org/10.1051/0004-6361/202039180</a>.","ieee":"S. Mathis, L. A. Bugnet, V. Prat, K. Augustson, S. Mathur, and R. A. Garcia, “Probing the internal magnetism of stars using asymptotic magneto-asteroseismology,” <i>Astronomy &#38; Astrophysics</i>, vol. 647. EDP Sciences, 2021."},"year":"2021","date_updated":"2022-08-19T10:11:52Z"},{"author":[{"last_name":"Meisenbichler","first_name":"Christina","full_name":"Meisenbichler, Christina"},{"full_name":"Kluibenschedl, Florian","last_name":"Kluibenschedl","first_name":"Florian","id":"7499e70e-eb2c-11ec-b98b-f925648bc9d9"},{"last_name":"Müller","first_name":"Thomas","full_name":"Müller, Thomas"}],"issue":"21","pmid":1,"_id":"12940","scopus_import":"1","title":"A 3-in-1 hand-held ambient mass spectrometry interface for identification and 2D localization of chemicals on surfaces","intvolume":"        92","publication_status":"published","date_created":"2023-05-10T14:50:19Z","article_processing_charge":"No","page":"14314-14318","quality_controlled":"1","article_type":"letter_note","publisher":"American Chemical Society","external_id":{"pmid":["33063994"]},"date_updated":"2023-05-15T08:01:20Z","year":"2020","citation":{"ama":"Meisenbichler C, Kluibenschedl F, Müller T. A 3-in-1 hand-held ambient mass spectrometry interface for identification and 2D localization of chemicals on surfaces. <i>Analytical Chemistry</i>. 2020;92(21):14314-14318. doi:<a href=\"https://doi.org/10.1021/acs.analchem.0c02615\">10.1021/acs.analchem.0c02615</a>","apa":"Meisenbichler, C., Kluibenschedl, F., &#38; Müller, T. (2020). A 3-in-1 hand-held ambient mass spectrometry interface for identification and 2D localization of chemicals on surfaces. <i>Analytical Chemistry</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acs.analchem.0c02615\">https://doi.org/10.1021/acs.analchem.0c02615</a>","chicago":"Meisenbichler, Christina, Florian Kluibenschedl, and Thomas Müller. “A 3-in-1 Hand-Held Ambient Mass Spectrometry Interface for Identification and 2D Localization of Chemicals on Surfaces.” <i>Analytical Chemistry</i>. American Chemical Society, 2020. <a href=\"https://doi.org/10.1021/acs.analchem.0c02615\">https://doi.org/10.1021/acs.analchem.0c02615</a>.","ieee":"C. Meisenbichler, F. Kluibenschedl, and T. Müller, “A 3-in-1 hand-held ambient mass spectrometry interface for identification and 2D localization of chemicals on surfaces,” <i>Analytical Chemistry</i>, vol. 92, no. 21. American Chemical Society, pp. 14314–14318, 2020.","mla":"Meisenbichler, Christina, et al. “A 3-in-1 Hand-Held Ambient Mass Spectrometry Interface for Identification and 2D Localization of Chemicals on Surfaces.” <i>Analytical Chemistry</i>, vol. 92, no. 21, American Chemical Society, 2020, pp. 14314–18, doi:<a href=\"https://doi.org/10.1021/acs.analchem.0c02615\">10.1021/acs.analchem.0c02615</a>.","short":"C. Meisenbichler, F. Kluibenschedl, T. Müller, Analytical Chemistry 92 (2020) 14314–14318.","ista":"Meisenbichler C, Kluibenschedl F, Müller T. 2020. A 3-in-1 hand-held ambient mass spectrometry interface for identification and 2D localization of chemicals on surfaces. Analytical Chemistry. 92(21), 14314–14318."},"abstract":[{"text":"Desorption electrospray ionization (DESI), easy ambient sonic-spray ionization (EASI) and low-temperature plasma (LTP) ionization are powerful ambient ionization techniques for mass spectrometry. However, every single method has its limitation in terms of polarity and molecular weight of analyte molecules. After the miniaturization of every possible component of the different ion sources, we finally were able to embed two emitters and an ion transfer tubing into a small, hand-held device. The pen-like interface is connected to the mass spectrometer and a separate control unit via a bundle of flexible tubing and cables. The novel device allows the user to ionize an extended range of chemicals by simple switching between DESI, voltage-free EASI, or LTP ionization as well as to freely move the interface over a surface of interest. A mini camera, which is mounted on the tip of the pen, magnifies the desorption area and enables a simple positioning of the pen. The interface was successfully tested using different types of chemicals, pharmaceuticals, and real life samples. Moreover, the combination of optical data from the camera module and chemical data obtained by mass analysis facilitates a novel type of imaging mass spectrometry, which we name “interactive mass spectrometry imaging (IMSI)”.","lang":"eng"}],"doi":"10.1021/acs.analchem.0c02615","day":"16","extern":"1","volume":92,"publication":"Analytical Chemistry","month":"10","oa_version":"Published Version","language":[{"iso":"eng"}],"keyword":["Analytical Chemistry"],"date_published":"2020-10-16T00:00:00Z","type":"journal_article","oa":1,"publication_identifier":{"issn":["0003-2700","1520-6882"]},"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","main_file_link":[{"url":"https://doi.org/10.1021/acs.analchem.0c02615","open_access":"1"}]},{"issue":"5","author":[{"full_name":"Ahrens, Johannes","first_name":"Johannes","last_name":"Ahrens"},{"last_name":"Bian","first_name":"Tong","full_name":"Bian, Tong"},{"full_name":"Vexler, Tom","last_name":"Vexler","first_name":"Tom"},{"id":"8e84690e-1e48-11ed-a02b-a1e6fb8bb53b","last_name":"Klajn","first_name":"Rafal","full_name":"Klajn, Rafal"}],"scopus_import":"1","_id":"13383","intvolume":"         1","title":"Irreversible bleaching of donor-acceptor stenhouse adducts on the surfaces of magnetite nanoparticles","article_processing_charge":"No","date_created":"2023-08-01T09:41:43Z","publication_status":"published","quality_controlled":"1","page":"230-236","article_type":"original","publisher":"Wiley","year":"2017","citation":{"apa":"Ahrens, J., Bian, T., Vexler, T., &#38; Klajn, R. (2017). Irreversible bleaching of donor-acceptor stenhouse adducts on the surfaces of magnetite nanoparticles. <i>ChemPhotoChem</i>. Wiley. <a href=\"https://doi.org/10.1002/cptc.201700009\">https://doi.org/10.1002/cptc.201700009</a>","ama":"Ahrens J, Bian T, Vexler T, Klajn R. Irreversible bleaching of donor-acceptor stenhouse adducts on the surfaces of magnetite nanoparticles. <i>ChemPhotoChem</i>. 2017;1(5):230-236. doi:<a href=\"https://doi.org/10.1002/cptc.201700009\">10.1002/cptc.201700009</a>","chicago":"Ahrens, Johannes, Tong Bian, Tom Vexler, and Rafal Klajn. “Irreversible Bleaching of Donor-Acceptor Stenhouse Adducts on the Surfaces of Magnetite Nanoparticles.” <i>ChemPhotoChem</i>. Wiley, 2017. <a href=\"https://doi.org/10.1002/cptc.201700009\">https://doi.org/10.1002/cptc.201700009</a>.","ieee":"J. Ahrens, T. Bian, T. Vexler, and R. Klajn, “Irreversible bleaching of donor-acceptor stenhouse adducts on the surfaces of magnetite nanoparticles,” <i>ChemPhotoChem</i>, vol. 1, no. 5. Wiley, pp. 230–236, 2017.","short":"J. Ahrens, T. Bian, T. Vexler, R. Klajn, ChemPhotoChem 1 (2017) 230–236.","mla":"Ahrens, Johannes, et al. “Irreversible Bleaching of Donor-Acceptor Stenhouse Adducts on the Surfaces of Magnetite Nanoparticles.” <i>ChemPhotoChem</i>, vol. 1, no. 5, Wiley, 2017, pp. 230–36, doi:<a href=\"https://doi.org/10.1002/cptc.201700009\">10.1002/cptc.201700009</a>.","ista":"Ahrens J, Bian T, Vexler T, Klajn R. 2017. Irreversible bleaching of donor-acceptor stenhouse adducts on the surfaces of magnetite nanoparticles. ChemPhotoChem. 1(5), 230–236."},"date_updated":"2023-08-07T12:08:05Z","abstract":[{"text":"Two novel donor–acceptor Stenhouse adducts (DASAs) featuring the catechol moiety were synthesized and characterized. Both compounds bind strongly to the surfaces of magnetite nanoparticles. An adrenaline-derived DASA renders the particles insoluble in all common solvents, likely because of poor solvation of the zwitterionic isomer generated on the nanoparticle surfaces. Well-soluble nanoparticles were successfully obtained using dopamine-derived DASA equipped with a long alkyl chain. Upon its attachment to nanoparticles, this DASA undergoes an irreversible decoloration reaction owing to the formation of the zwitterionic form. The reaction follows first-order kinetics and proceeds more rapidly on large nanoparticles. Interestingly, decoloration can be suppressed in the presence of free DASA molecules in solution or at high nanoparticle concentrations.","lang":"eng"}],"day":"01","doi":"10.1002/cptc.201700009","extern":"1","volume":1,"publication":"ChemPhotoChem","month":"05","oa_version":"None","keyword":["Organic Chemistry","Physical and Theoretical Chemistry","Analytical Chemistry"],"language":[{"iso":"eng"}],"type":"journal_article","date_published":"2017-05-01T00:00:00Z","publication_identifier":{"eissn":["2367-0932"]},"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"}]