---
_id: '13063'
abstract:
- lang: eng
text: We develop a Bayesian model (BayesRR-RC) that provides robust SNP-heritability
estimation, an alternative to marker discovery, and accurate genomic prediction,
taking 22 seconds per iteration to estimate 8.4 million SNP-effects and 78 SNP-heritability
parameters in the UK Biobank. We find that only $\leq$ 10\% of the genetic variation
captured for height, body mass index, cardiovascular disease, and type 2 diabetes
is attributable to proximal regulatory regions within 10kb upstream of genes,
while 12-25% is attributed to coding regions, 32-44% to introns, and 22-28% to
distal 10-500kb upstream regions. Up to 24% of all cis and coding regions of each
chromosome are associated with each trait, with over 3,100 independent exonic
and intronic regions and over 5,400 independent regulatory regions having >95%
probability of contributing >0.001% to the genetic variance of these four traits.
Our open-source software (GMRM) provides a scalable alternative to current approaches
for biobank data.
article_processing_charge: No
author:
- first_name: Matthew Richard
full_name: Robinson, Matthew Richard
id: E5D42276-F5DA-11E9-8E24-6303E6697425
last_name: Robinson
orcid: 0000-0001-8982-8813
citation:
ama: Robinson MR. Probabilistic inference of the genetic architecture of functional
enrichment of complex traits. 2021. doi:10.5061/dryad.sqv9s4n51
apa: Robinson, M. R. (2021). Probabilistic inference of the genetic architecture
of functional enrichment of complex traits. Dryad. https://doi.org/10.5061/dryad.sqv9s4n51
chicago: Robinson, Matthew Richard. “Probabilistic Inference of the Genetic Architecture
of Functional Enrichment of Complex Traits.” Dryad, 2021. https://doi.org/10.5061/dryad.sqv9s4n51.
ieee: M. R. Robinson, “Probabilistic inference of the genetic architecture of functional
enrichment of complex traits.” Dryad, 2021.
ista: Robinson MR. 2021. Probabilistic inference of the genetic architecture of
functional enrichment of complex traits, Dryad, 10.5061/dryad.sqv9s4n51.
mla: Robinson, Matthew Richard. Probabilistic Inference of the Genetic Architecture
of Functional Enrichment of Complex Traits. Dryad, 2021, doi:10.5061/dryad.sqv9s4n51.
short: M.R. Robinson, (2021).
date_created: 2023-05-23T16:20:16Z
date_published: 2021-11-04T00:00:00Z
date_updated: 2023-09-26T10:36:15Z
day: '04'
ddc:
- '570'
department:
- _id: MaRo
doi: 10.5061/dryad.sqv9s4n51
license: https://creativecommons.org/publicdomain/zero/1.0/
main_file_link:
- open_access: '1'
url: https://doi.org/10.5061/dryad.sqv9s4n51
month: '11'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
link:
- relation: software
url: https://github.com/medical-genomics-group/gmrm
record:
- id: '8429'
relation: used_in_publication
status: public
status: public
title: Probabilistic inference of the genetic architecture of functional enrichment
of complex traits
tmp:
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)
short: CC0 (1.0)
type: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '13068'
abstract:
- lang: eng
text: Source data and source code for the graphs in "Spatiotemporal dynamics of
self-organized branching pancreatic cancer-derived organoids".
article_processing_charge: No
author:
- first_name: Samuel
full_name: Randriamanantsoa, Samuel
last_name: Randriamanantsoa
- first_name: Aristeidis
full_name: Papargyriou, Aristeidis
last_name: Papargyriou
- first_name: Carlo
full_name: Maurer, Carlo
last_name: Maurer
- first_name: Katja
full_name: Peschke, Katja
last_name: Peschke
- first_name: Maximilian
full_name: Schuster, Maximilian
last_name: Schuster
- first_name: Giulia
full_name: Zecchin, Giulia
last_name: Zecchin
- first_name: Katja
full_name: Steiger, Katja
last_name: Steiger
- first_name: Rupert
full_name: Öllinger, Rupert
last_name: Öllinger
- first_name: Dieter
full_name: Saur, Dieter
last_name: Saur
- first_name: Christina
full_name: Scheel, Christina
last_name: Scheel
- first_name: Roland
full_name: Rad, Roland
last_name: Rad
- first_name: Edouard B
full_name: Hannezo, Edouard B
id: 3A9DB764-F248-11E8-B48F-1D18A9856A87
last_name: Hannezo
orcid: 0000-0001-6005-1561
- first_name: Maximilian
full_name: Reichert, Maximilian
last_name: Reichert
- first_name: Andreas R.
full_name: Bausch, Andreas R.
last_name: Bausch
citation:
ama: Randriamanantsoa S, Papargyriou A, Maurer C, et al. Spatiotemporal dynamics
of self-organized branching in pancreas-derived organoids. 2021. doi:10.5281/ZENODO.5148117
apa: Randriamanantsoa, S., Papargyriou, A., Maurer, C., Peschke, K., Schuster, M.,
Zecchin, G., … Bausch, A. R. (2021). Spatiotemporal dynamics of self-organized
branching in pancreas-derived organoids. Zenodo. https://doi.org/10.5281/ZENODO.5148117
chicago: Randriamanantsoa, Samuel, Aristeidis Papargyriou, Carlo Maurer, Katja Peschke,
Maximilian Schuster, Giulia Zecchin, Katja Steiger, et al. “Spatiotemporal Dynamics
of Self-Organized Branching in Pancreas-Derived Organoids.” Zenodo, 2021. https://doi.org/10.5281/ZENODO.5148117.
ieee: S. Randriamanantsoa et al., “Spatiotemporal dynamics of self-organized
branching in pancreas-derived organoids.” Zenodo, 2021.
ista: Randriamanantsoa S, Papargyriou A, Maurer C, Peschke K, Schuster M, Zecchin
G, Steiger K, Öllinger R, Saur D, Scheel C, Rad R, Hannezo EB, Reichert M, Bausch
AR. 2021. Spatiotemporal dynamics of self-organized branching in pancreas-derived
organoids, Zenodo, 10.5281/ZENODO.5148117.
mla: Randriamanantsoa, Samuel, et al. Spatiotemporal Dynamics of Self-Organized
Branching in Pancreas-Derived Organoids. Zenodo, 2021, doi:10.5281/ZENODO.5148117.
short: S. Randriamanantsoa, A. Papargyriou, C. Maurer, K. Peschke, M. Schuster,
G. Zecchin, K. Steiger, R. Öllinger, D. Saur, C. Scheel, R. Rad, E.B. Hannezo,
M. Reichert, A.R. Bausch, (2021).
date_created: 2023-05-23T16:39:24Z
date_published: 2021-07-30T00:00:00Z
date_updated: 2023-08-04T09:25:23Z
day: '30'
ddc:
- '570'
department:
- _id: EdHa
doi: 10.5281/ZENODO.5148117
license: https://creativecommons.org/licenses/by/4.0/
main_file_link:
- open_access: '1'
url: https://doi.org/10.5281/zenodo.6577226
month: '07'
oa: 1
oa_version: Published Version
publisher: Zenodo
related_material:
record:
- id: '12217'
relation: used_in_publication
status: public
status: public
title: Spatiotemporal dynamics of self-organized branching in pancreas-derived organoids
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '13069'
abstract:
- lang: eng
text: To survive elevated temperatures, ectotherms adjust the fluidity of membranes
by fine-tuning lipid desaturation levels in a process previously described to
be cell-autonomous. We have discovered that, in Caenorhabditis elegans, neuronal
Heat shock Factor 1 (HSF-1), the conserved master regulator of the heat shock
response (HSR)- causes extensive fat remodelling in peripheral tissues. These
changes include a decrease in fat desaturase and acid lipase expression in the
intestine, and a global shift in the saturation levels of plasma membrane’s phospholipids.
The observed remodelling of plasma membrane is in line with ectothermic adaptive
responses and gives worms a cumulative advantage to warm temperatures. We have
determined that at least six TAX-2/TAX-4 cGMP gated channel expressing sensory
neurons and TGF-β/BMP are required for signalling across tissues to modulate fat
desaturation. We also find neuronal hsf-1 is not only sufficient but also partially
necessary to control the fat remodelling response and for survival at warm temperatures.
This is the first study to show that a thermostat-based mechanism can cell non-autonomously
coordinate membrane saturation and composition across tissues in a multicellular
animal.
article_processing_charge: No
author:
- first_name: Laetitia
full_name: Chauve, Laetitia
last_name: Chauve
- first_name: Francesca
full_name: Hodge, Francesca
last_name: Hodge
- first_name: Sharlene
full_name: Murdoch, Sharlene
last_name: Murdoch
- first_name: Fatemah
full_name: Masoudzadeh, Fatemah
last_name: Masoudzadeh
- first_name: Harry-Jack
full_name: Mann, Harry-Jack
last_name: Mann
- first_name: Andrea
full_name: Lopez-Clavijo, Andrea
last_name: Lopez-Clavijo
- first_name: Hanneke
full_name: Okkenhaug, Hanneke
last_name: Okkenhaug
- first_name: Greg
full_name: West, Greg
last_name: West
- first_name: Bebiana C.
full_name: Sousa, Bebiana C.
last_name: Sousa
- first_name: Anne
full_name: Segonds-Pichon, Anne
last_name: Segonds-Pichon
- first_name: Cheryl
full_name: Li, Cheryl
last_name: Li
- first_name: Steven
full_name: Wingett, Steven
last_name: Wingett
- first_name: Hermine
full_name: Kienberger, Hermine
last_name: Kienberger
- first_name: Karin
full_name: Kleigrewe, Karin
last_name: Kleigrewe
- first_name: Mario
full_name: de Bono, Mario
id: 4E3FF80E-F248-11E8-B48F-1D18A9856A87
last_name: de Bono
orcid: 0000-0001-8347-0443
- first_name: Michael
full_name: Wakelam, Michael
last_name: Wakelam
- first_name: Olivia
full_name: Casanueva, Olivia
last_name: Casanueva
citation:
ama: Chauve L, Hodge F, Murdoch S, et al. Neuronal HSF-1 coordinates the propagation
of fat desaturation across tissues to enable adaptation to high temperatures in
C. elegans. 2021. doi:10.5281/ZENODO.5519410
apa: Chauve, L., Hodge, F., Murdoch, S., Masoudzadeh, F., Mann, H.-J., Lopez-Clavijo,
A., … Casanueva, O. (2021). Neuronal HSF-1 coordinates the propagation of fat
desaturation across tissues to enable adaptation to high temperatures in C. elegans.
Zenodo. https://doi.org/10.5281/ZENODO.5519410
chicago: Chauve, Laetitia, Francesca Hodge, Sharlene Murdoch, Fatemah Masoudzadeh,
Harry-Jack Mann, Andrea Lopez-Clavijo, Hanneke Okkenhaug, et al. “Neuronal HSF-1
Coordinates the Propagation of Fat Desaturation across Tissues to Enable Adaptation
to High Temperatures in C. Elegans.” Zenodo, 2021. https://doi.org/10.5281/ZENODO.5519410.
ieee: L. Chauve et al., “Neuronal HSF-1 coordinates the propagation of fat
desaturation across tissues to enable adaptation to high temperatures in C. elegans.”
Zenodo, 2021.
ista: Chauve L, Hodge F, Murdoch S, Masoudzadeh F, Mann H-J, Lopez-Clavijo A, Okkenhaug
H, West G, Sousa BC, Segonds-Pichon A, Li C, Wingett S, Kienberger H, Kleigrewe
K, de Bono M, Wakelam M, Casanueva O. 2021. Neuronal HSF-1 coordinates the propagation
of fat desaturation across tissues to enable adaptation to high temperatures in
C. elegans, Zenodo, 10.5281/ZENODO.5519410.
mla: Chauve, Laetitia, et al. Neuronal HSF-1 Coordinates the Propagation of Fat
Desaturation across Tissues to Enable Adaptation to High Temperatures in C. Elegans.
Zenodo, 2021, doi:10.5281/ZENODO.5519410.
short: L. Chauve, F. Hodge, S. Murdoch, F. Masoudzadeh, H.-J. Mann, A. Lopez-Clavijo,
H. Okkenhaug, G. West, B.C. Sousa, A. Segonds-Pichon, C. Li, S. Wingett, H. Kienberger,
K. Kleigrewe, M. de Bono, M. Wakelam, O. Casanueva, (2021).
date_created: 2023-05-23T16:40:56Z
date_published: 2021-12-25T00:00:00Z
date_updated: 2023-08-14T11:53:26Z
day: '25'
ddc:
- '570'
department:
- _id: MaDe
doi: 10.5281/ZENODO.5519410
main_file_link:
- open_access: '1'
url: https://doi.org/10.5281/zenodo.5547464
month: '12'
oa: 1
oa_version: Published Version
publisher: Zenodo
related_material:
record:
- id: '10322'
relation: used_in_publication
status: public
status: public
title: Neuronal HSF-1 coordinates the propagation of fat desaturation across tissues
to enable adaptation to high temperatures in C. elegans
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '13072'
abstract:
- lang: eng
text: CpGs and corresponding mean weights for DNAm-based prediction of cognitive
abilities (6 traits)
article_processing_charge: No
author:
- first_name: Daniel L
full_name: McCartney, Daniel L
last_name: McCartney
- first_name: Robert F
full_name: Hillary, Robert F
last_name: Hillary
- first_name: Eleanor LS
full_name: Conole, Eleanor LS
last_name: Conole
- first_name: Daniel
full_name: Trejo Banos, Daniel
last_name: Trejo Banos
- first_name: Danni A
full_name: Gadd, Danni A
last_name: Gadd
- first_name: Rosie M
full_name: Walker, Rosie M
last_name: Walker
- first_name: Cliff
full_name: Nangle, Cliff
last_name: Nangle
- first_name: Robin
full_name: Flaig, Robin
last_name: Flaig
- first_name: Archie
full_name: Campbell, Archie
last_name: Campbell
- first_name: Alison D
full_name: Murray, Alison D
last_name: Murray
- first_name: Susana
full_name: Munoz Maniega, Susana
last_name: Munoz Maniega
- first_name: Maria
full_name: del C Valdes-Hernandez, Maria
last_name: del C Valdes-Hernandez
- first_name: Mathew A
full_name: Harris, Mathew A
last_name: Harris
- first_name: Mark E
full_name: Bastin, Mark E
last_name: Bastin
- first_name: Joanna M
full_name: Wardlaw, Joanna M
last_name: Wardlaw
- first_name: Sarah E
full_name: Harris, Sarah E
last_name: Harris
- first_name: David J
full_name: Porteous, David J
last_name: Porteous
- first_name: Elliot M
full_name: Tucker-Drob, Elliot M
last_name: Tucker-Drob
- first_name: Andrew M
full_name: McIntosh, Andrew M
last_name: McIntosh
- first_name: Kathryn L
full_name: Evans, Kathryn L
last_name: Evans
- first_name: Ian J
full_name: Deary, Ian J
last_name: Deary
- first_name: Simon R
full_name: Cox, Simon R
last_name: Cox
- first_name: Matthew Richard
full_name: Robinson, Matthew Richard
id: E5D42276-F5DA-11E9-8E24-6303E6697425
last_name: Robinson
orcid: 0000-0001-8982-8813
- first_name: Riccardo E
full_name: Marioni, Riccardo E
last_name: Marioni
citation:
ama: McCartney DL, Hillary RF, Conole EL, et al. Blood-based epigenome-wide analyses
of cognitive abilities. 2021. doi:10.5281/ZENODO.5794028
apa: McCartney, D. L., Hillary, R. F., Conole, E. L., Trejo Banos, D., Gadd, D.
A., Walker, R. M., … Marioni, R. E. (2021). Blood-based epigenome-wide analyses
of cognitive abilities. Zenodo. https://doi.org/10.5281/ZENODO.5794028
chicago: McCartney, Daniel L, Robert F Hillary, Eleanor LS Conole, Daniel Trejo
Banos, Danni A Gadd, Rosie M Walker, Cliff Nangle, et al. “Blood-Based Epigenome-Wide
Analyses of Cognitive Abilities.” Zenodo, 2021. https://doi.org/10.5281/ZENODO.5794028.
ieee: D. L. McCartney et al., “Blood-based epigenome-wide analyses of cognitive
abilities.” Zenodo, 2021.
ista: McCartney DL, Hillary RF, Conole EL, Trejo Banos D, Gadd DA, Walker RM, Nangle
C, Flaig R, Campbell A, Murray AD, Munoz Maniega S, del C Valdes-Hernandez M,
Harris MA, Bastin ME, Wardlaw JM, Harris SE, Porteous DJ, Tucker-Drob EM, McIntosh
AM, Evans KL, Deary IJ, Cox SR, Robinson MR, Marioni RE. 2021. Blood-based epigenome-wide
analyses of cognitive abilities, Zenodo, 10.5281/ZENODO.5794028.
mla: McCartney, Daniel L., et al. Blood-Based Epigenome-Wide Analyses of Cognitive
Abilities. Zenodo, 2021, doi:10.5281/ZENODO.5794028.
short: D.L. McCartney, R.F. Hillary, E.L. Conole, D. Trejo Banos, D.A. Gadd, R.M.
Walker, C. Nangle, R. Flaig, A. Campbell, A.D. Murray, S. Munoz Maniega, M. del
C Valdes-Hernandez, M.A. Harris, M.E. Bastin, J.M. Wardlaw, S.E. Harris, D.J.
Porteous, E.M. Tucker-Drob, A.M. McIntosh, K.L. Evans, I.J. Deary, S.R. Cox, M.R.
Robinson, R.E. Marioni, (2021).
date_created: 2023-05-23T16:46:20Z
date_published: 2021-12-20T00:00:00Z
date_updated: 2023-08-02T14:05:12Z
day: '20'
ddc:
- '570'
department:
- _id: MaRo
doi: 10.5281/ZENODO.5794028
main_file_link:
- open_access: '1'
url: https://doi.org/10.5281/zenodo.5794029
month: '12'
oa: 1
oa_version: Published Version
publisher: Zenodo
related_material:
record:
- id: '10702'
relation: used_in_publication
status: public
status: public
title: Blood-based epigenome-wide analyses of cognitive abilities
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '13080'
abstract:
- lang: eng
text: "Data for the manuscript 'Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor
Nanowire' ([2006.01275] Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor
Nanowire (arxiv.org))\r\n\r\nWe upload a pdf with extended data sets, and the
raw data for these extended datasets as well."
article_processing_charge: No
author:
- first_name: Denise
full_name: Puglia, Denise
id: 4D495994-AE37-11E9-AC72-31CAE5697425
last_name: Puglia
- first_name: Esteban
full_name: Martinez, Esteban
last_name: Martinez
- first_name: Gerbold
full_name: Menard, Gerbold
last_name: Menard
- first_name: Andreas
full_name: Pöschl, Andreas
last_name: Pöschl
- first_name: Sergei
full_name: Gronin, Sergei
last_name: Gronin
- first_name: Geoffrey
full_name: Gardner, Geoffrey
last_name: Gardner
- first_name: Ray
full_name: Kallaher, Ray
last_name: Kallaher
- first_name: Michael
full_name: Manfra, Michael
last_name: Manfra
- first_name: Charles
full_name: Marcus, Charles
last_name: Marcus
- first_name: Andrew P
full_name: Higginbotham, Andrew P
id: 4AD6785A-F248-11E8-B48F-1D18A9856A87
last_name: Higginbotham
orcid: 0000-0003-2607-2363
- first_name: Lucas
full_name: Casparis, Lucas
last_name: Casparis
citation:
ama: Puglia D, Martinez E, Menard G, et al. Data for ’Closing of the Induced Gap
in a Hybrid Superconductor-Semiconductor Nanowire. 2021. doi:10.5281/ZENODO.4592435
apa: Puglia, D., Martinez, E., Menard, G., Pöschl, A., Gronin, S., Gardner, G.,
… Casparis, L. (2021). Data for ’Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor
Nanowire. Zenodo. https://doi.org/10.5281/ZENODO.4592435
chicago: Puglia, Denise, Esteban Martinez, Gerbold Menard, Andreas Pöschl, Sergei
Gronin, Geoffrey Gardner, Ray Kallaher, et al. “Data for ’Closing of the Induced
Gap in a Hybrid Superconductor-Semiconductor Nanowire.” Zenodo, 2021. https://doi.org/10.5281/ZENODO.4592435.
ieee: D. Puglia et al., “Data for ’Closing of the Induced Gap in a Hybrid
Superconductor-Semiconductor Nanowire.” Zenodo, 2021.
ista: Puglia D, Martinez E, Menard G, Pöschl A, Gronin S, Gardner G, Kallaher R,
Manfra M, Marcus C, Higginbotham AP, Casparis L. 2021. Data for ’Closing of the
Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire, Zenodo, 10.5281/ZENODO.4592435.
mla: Puglia, Denise, et al. Data for ’Closing of the Induced Gap in a Hybrid
Superconductor-Semiconductor Nanowire. Zenodo, 2021, doi:10.5281/ZENODO.4592435.
short: D. Puglia, E. Martinez, G. Menard, A. Pöschl, S. Gronin, G. Gardner, R. Kallaher,
M. Manfra, C. Marcus, A.P. Higginbotham, L. Casparis, (2021).
date_created: 2023-05-23T17:11:28Z
date_published: 2021-03-09T00:00:00Z
date_updated: 2023-08-08T14:08:07Z
day: '09'
ddc:
- '530'
department:
- _id: AnHi
doi: 10.5281/ZENODO.4592435
main_file_link:
- open_access: '1'
url: https://doi.org/10.5281/zenodo.4592460
month: '03'
oa: 1
oa_version: Published Version
publisher: Zenodo
related_material:
link:
- relation: software
url: https://github.com/caslu85/Induced-Gap-Closing-Shared/tree/1.1.3
record:
- id: '9570'
relation: used_in_publication
status: public
status: public
title: Data for 'Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor
Nanowire
type: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '13146'
abstract:
- lang: eng
text: 'A recent line of work has analyzed the theoretical properties of deep neural
networks via the Neural Tangent Kernel (NTK). In particular, the smallest eigenvalue
of the NTK has been related to the memorization capacity, the global convergence
of gradient descent algorithms and the generalization of deep nets. However, existing
results either provide bounds in the two-layer setting or assume that the spectrum
of the NTK matrices is bounded away from 0 for multi-layer networks. In this paper,
we provide tight bounds on the smallest eigenvalue of NTK matrices for deep ReLU
nets, both in the limiting case of infinite widths and for finite widths. In the
finite-width setting, the network architectures we consider are fairly general:
we require the existence of a wide layer with roughly order of N neurons, N being
the number of data samples; and the scaling of the remaining layer widths is arbitrary
(up to logarithmic factors). To obtain our results, we analyze various quantities
of independent interest: we give lower bounds on the smallest singular value of
hidden feature matrices, and upper bounds on the Lipschitz constant of input-output
feature maps.'
acknowledgement: The authors would like to thank the anonymous reviewers for their
helpful comments. MM was partially supported by the 2019 Lopez-Loreta Prize. QN
and GM acknowledge support from the European Research Council (ERC) under the European
Union’s Horizon 2020 research and innovation programme (grant agreement no 757983).
article_processing_charge: No
arxiv: 1
author:
- first_name: Quynh
full_name: Nguyen, Quynh
last_name: Nguyen
- first_name: Marco
full_name: Mondelli, Marco
id: 27EB676C-8706-11E9-9510-7717E6697425
last_name: Mondelli
orcid: 0000-0002-3242-7020
- first_name: Guido
full_name: Montufar, Guido
last_name: Montufar
citation:
ama: 'Nguyen Q, Mondelli M, Montufar G. Tight bounds on the smallest Eigenvalue
of the neural tangent kernel for deep ReLU networks. In: Proceedings of the
38th International Conference on Machine Learning. Vol 139. ML Research Press;
2021:8119-8129.'
apa: 'Nguyen, Q., Mondelli, M., & Montufar, G. (2021). Tight bounds on the smallest
Eigenvalue of the neural tangent kernel for deep ReLU networks. In Proceedings
of the 38th International Conference on Machine Learning (Vol. 139, pp. 8119–8129).
Virtual: ML Research Press.'
chicago: Nguyen, Quynh, Marco Mondelli, and Guido Montufar. “Tight Bounds on the
Smallest Eigenvalue of the Neural Tangent Kernel for Deep ReLU Networks.” In Proceedings
of the 38th International Conference on Machine Learning, 139:8119–29. ML
Research Press, 2021.
ieee: Q. Nguyen, M. Mondelli, and G. Montufar, “Tight bounds on the smallest Eigenvalue
of the neural tangent kernel for deep ReLU networks,” in Proceedings of the
38th International Conference on Machine Learning, Virtual, 2021, vol. 139,
pp. 8119–8129.
ista: Nguyen Q, Mondelli M, Montufar G. 2021. Tight bounds on the smallest Eigenvalue
of the neural tangent kernel for deep ReLU networks. Proceedings of the 38th International
Conference on Machine Learning. International Conference on Machine Learning vol.
139, 8119–8129.
mla: Nguyen, Quynh, et al. “Tight Bounds on the Smallest Eigenvalue of the Neural
Tangent Kernel for Deep ReLU Networks.” Proceedings of the 38th International
Conference on Machine Learning, vol. 139, ML Research Press, 2021, pp. 8119–29.
short: Q. Nguyen, M. Mondelli, G. Montufar, in:, Proceedings of the 38th International
Conference on Machine Learning, ML Research Press, 2021, pp. 8119–8129.
conference:
end_date: 2021-07-24
location: Virtual
name: International Conference on Machine Learning
start_date: 2021-07-18
date_created: 2023-06-18T22:00:48Z
date_published: 2021-07-01T00:00:00Z
date_updated: 2024-09-10T13:03:17Z
day: '01'
ddc:
- '000'
department:
- _id: MaMo
external_id:
arxiv:
- '2012.11654'
file:
- access_level: open_access
checksum: 19489cf5e16a0596b1f92e317d97c9b0
content_type: application/pdf
creator: dernst
date_created: 2023-06-19T10:49:12Z
date_updated: 2023-06-19T10:49:12Z
file_id: '13155'
file_name: 2021_PMLR_Nguyen.pdf
file_size: 591332
relation: main_file
success: 1
file_date_updated: 2023-06-19T10:49:12Z
has_accepted_license: '1'
intvolume: ' 139'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: 8119-8129
project:
- _id: 059876FA-7A3F-11EA-A408-12923DDC885E
name: Prix Lopez-Loretta 2019 - Marco Mondelli
publication: Proceedings of the 38th International Conference on Machine Learning
publication_identifier:
eissn:
- 2640-3498
isbn:
- '9781713845065'
publication_status: published
publisher: ML Research Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Tight bounds on the smallest Eigenvalue of the neural tangent kernel for deep
ReLU networks
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 139
year: '2021'
...
---
_id: '13147'
abstract:
- lang: eng
text: "We investigate fast and communication-efficient algorithms for the classic
problem of minimizing a sum of strongly convex and smooth functions that are distributed
among n\r\n different nodes, which can communicate using a limited number of bits.
Most previous communication-efficient approaches for this problem are limited
to first-order optimization, and therefore have \\emph{linear} dependence on the
condition number in their communication complexity. We show that this dependence
is not inherent: communication-efficient methods can in fact have sublinear dependence
on the condition number. For this, we design and analyze the first communication-efficient
distributed variants of preconditioned gradient descent for Generalized Linear
Models, and for Newton’s method. Our results rely on a new technique for quantizing
both the preconditioner and the descent direction at each step of the algorithms,
while controlling their convergence rate. We also validate our findings experimentally,
showing faster convergence and reduced communication relative to previous methods."
acknowledgement: The authors would like to thank Janne Korhonen, Aurelien Lucchi,
Celestine MendlerDunner and Antonio Orvieto for helpful discussions. FA ¨and DA
were supported during this work by the European Research Council (ERC) under the
European Union’s Horizon 2020 research and innovation programme (grant agreement
No 805223 ScaleML). PD was supported by the European Union’s Horizon 2020 programme
under the Marie Skłodowska-Curie grant agreement No. 754411.
article_processing_charge: No
arxiv: 1
author:
- first_name: Foivos
full_name: Alimisis, Foivos
last_name: Alimisis
- first_name: Peter
full_name: Davies, Peter
id: 11396234-BB50-11E9-B24C-90FCE5697425
last_name: Davies
orcid: 0000-0002-5646-9524
- first_name: Dan-Adrian
full_name: Alistarh, Dan-Adrian
id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
last_name: Alistarh
orcid: 0000-0003-3650-940X
citation:
ama: 'Alimisis F, Davies P, Alistarh D-A. Communication-efficient distributed optimization
with quantized preconditioners. In: Proceedings of the 38th International Conference
on Machine Learning. Vol 139. ML Research Press; 2021:196-206.'
apa: 'Alimisis, F., Davies, P., & Alistarh, D.-A. (2021). Communication-efficient
distributed optimization with quantized preconditioners. In Proceedings of
the 38th International Conference on Machine Learning (Vol. 139, pp. 196–206).
Virtual: ML Research Press.'
chicago: Alimisis, Foivos, Peter Davies, and Dan-Adrian Alistarh. “Communication-Efficient
Distributed Optimization with Quantized Preconditioners.” In Proceedings of
the 38th International Conference on Machine Learning, 139:196–206. ML Research
Press, 2021.
ieee: F. Alimisis, P. Davies, and D.-A. Alistarh, “Communication-efficient distributed
optimization with quantized preconditioners,” in Proceedings of the 38th International
Conference on Machine Learning, Virtual, 2021, vol. 139, pp. 196–206.
ista: Alimisis F, Davies P, Alistarh D-A. 2021. Communication-efficient distributed
optimization with quantized preconditioners. Proceedings of the 38th International
Conference on Machine Learning. International Conference on Machine Learning vol.
139, 196–206.
mla: Alimisis, Foivos, et al. “Communication-Efficient Distributed Optimization
with Quantized Preconditioners.” Proceedings of the 38th International Conference
on Machine Learning, vol. 139, ML Research Press, 2021, pp. 196–206.
short: F. Alimisis, P. Davies, D.-A. Alistarh, in:, Proceedings of the 38th International
Conference on Machine Learning, ML Research Press, 2021, pp. 196–206.
conference:
end_date: 2021-07-24
location: Virtual
name: International Conference on Machine Learning
start_date: 2021-07-18
date_created: 2023-06-18T22:00:48Z
date_published: 2021-07-01T00:00:00Z
date_updated: 2023-06-19T10:44:38Z
day: '01'
ddc:
- '000'
department:
- _id: DaAl
ec_funded: 1
external_id:
arxiv:
- '2102.07214'
file:
- access_level: open_access
checksum: 7ec0d59bac268b49c76bf2e036dedd7a
content_type: application/pdf
creator: dernst
date_created: 2023-06-19T10:41:05Z
date_updated: 2023-06-19T10:41:05Z
file_id: '13154'
file_name: 2021_PMLR_Alimisis.pdf
file_size: 429087
relation: main_file
success: 1
file_date_updated: 2023-06-19T10:41:05Z
has_accepted_license: '1'
intvolume: ' 139'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: 196-206
project:
- _id: 268A44D6-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '805223'
name: Elastic Coordination for Scalable Machine Learning
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Proceedings of the 38th International Conference on Machine Learning
publication_identifier:
eissn:
- 2640-3498
isbn:
- '9781713845065'
publication_status: published
publisher: ML Research Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Communication-efficient distributed optimization with quantized preconditioners
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 139
year: '2021'
...
---
_id: '13356'
abstract:
- lang: eng
text: 'Self-assembly of nanoparticles can be mediated by polymers, but has so far
led almost exclusively to nanoparticle aggregates that are amorphous. Here, we
employed Coulombic interactions to generate a range of composite materials from
mixtures of charged nanoparticles and oppositely charged polymers. The assembly
behavior of these nanoparticle/polymer composites depends on their order of addition:
polymers added to nanoparticles give rise to stable aggregates, but nanoparticles
added to polymers disassemble the initially formed aggregates. The amorphous aggregates
were transformed into crystalline ones by transiently increasing the ionic strength
of the solution. The morphology of the resulting crystals depended on the length
of the polymer: short polymer chains mediated the self-assembly of nanoparticles
into strongly faceted crystals, whereas long chains led to pseudospherical nanoparticle/polymer
assemblies, within which the crystalline order of nanoparticles was retained.'
article_processing_charge: No
article_type: original
author:
- first_name: Tong
full_name: Bian, Tong
last_name: Bian
- first_name: Rafal
full_name: Klajn, Rafal
id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
last_name: Klajn
citation:
ama: Bian T, Klajn R. Morphology control in crystalline nanoparticle–polymer aggregates.
Annals of the New York Academy of Sciences. 2021;1505(1):191-201. doi:10.1111/nyas.14674
apa: Bian, T., & Klajn, R. (2021). Morphology control in crystalline nanoparticle–polymer
aggregates. Annals of the New York Academy of Sciences. Wiley. https://doi.org/10.1111/nyas.14674
chicago: Bian, Tong, and Rafal Klajn. “Morphology Control in Crystalline Nanoparticle–Polymer
Aggregates.” Annals of the New York Academy of Sciences. Wiley, 2021. https://doi.org/10.1111/nyas.14674.
ieee: T. Bian and R. Klajn, “Morphology control in crystalline nanoparticle–polymer
aggregates,” Annals of the New York Academy of Sciences, vol. 1505, no.
1. Wiley, pp. 191–201, 2021.
ista: Bian T, Klajn R. 2021. Morphology control in crystalline nanoparticle–polymer
aggregates. Annals of the New York Academy of Sciences. 1505(1), 191–201.
mla: Bian, Tong, and Rafal Klajn. “Morphology Control in Crystalline Nanoparticle–Polymer
Aggregates.” Annals of the New York Academy of Sciences, vol. 1505, no.
1, Wiley, 2021, pp. 191–201, doi:10.1111/nyas.14674.
short: T. Bian, R. Klajn, Annals of the New York Academy of Sciences 1505 (2021)
191–201.
date_created: 2023-08-01T09:33:39Z
date_published: 2021-12-01T00:00:00Z
date_updated: 2023-08-07T10:01:10Z
day: '01'
ddc:
- '540'
doi: 10.1111/nyas.14674
extern: '1'
external_id:
pmid:
- '34427923'
intvolume: ' 1505'
issue: '1'
keyword:
- History and Philosophy of Science
- General Biochemistry
- Genetics and Molecular Biology
- General Neuroscience
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1111/nyas.14674
month: '12'
oa: 1
oa_version: Published Version
page: 191-201
pmid: 1
publication: Annals of the New York Academy of Sciences
publication_identifier:
eissn:
- 1749-6632
issn:
- 0077-8923
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Morphology control in crystalline nanoparticle–polymer aggregates
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 1505
year: '2021'
...
---
_id: '13357'
abstract:
- lang: eng
text: Coulombic interactions can be used to assemble charged nanoparticles into
higher-order structures, but the process requires oppositely charged partners
that are similarly sized. The ability to mediate the assembly of such charged
nanoparticles using structurally simple small molecules would greatly facilitate
the fabrication of nanostructured materials and harnessing their applications
in catalysis, sensing and photonics. Here we show that small molecules with as
few as three electric charges can effectively induce attractive interactions between
oppositely charged nanoparticles in water. These interactions can guide the assembly
of charged nanoparticles into colloidal crystals of a quality previously only
thought to result from their co-crystallization with oppositely charged nanoparticles
of a similar size. Transient nanoparticle assemblies can be generated using positively
charged nanoparticles and multiply charged anions that are enzymatically hydrolysed
into mono- and/or dianions. Our findings demonstrate an approach for the facile
fabrication, manipulation and further investigation of static and dynamic nanostructured
materials in aqueous environments.
article_processing_charge: No
article_type: original
author:
- first_name: Tong
full_name: Bian, Tong
last_name: Bian
- first_name: Andrea
full_name: Gardin, Andrea
last_name: Gardin
- first_name: Julius
full_name: Gemen, Julius
last_name: Gemen
- first_name: Lothar
full_name: Houben, Lothar
last_name: Houben
- first_name: Claudio
full_name: Perego, Claudio
last_name: Perego
- first_name: Byeongdu
full_name: Lee, Byeongdu
last_name: Lee
- first_name: Nadav
full_name: Elad, Nadav
last_name: Elad
- first_name: Zonglin
full_name: Chu, Zonglin
last_name: Chu
- first_name: Giovanni M.
full_name: Pavan, Giovanni M.
last_name: Pavan
- first_name: Rafal
full_name: Klajn, Rafal
id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
last_name: Klajn
citation:
ama: Bian T, Gardin A, Gemen J, et al. Electrostatic co-assembly of nanoparticles
with oppositely charged small molecules into static and dynamic superstructures.
Nature Chemistry. 2021;13(10):940-949. doi:10.1038/s41557-021-00752-9
apa: Bian, T., Gardin, A., Gemen, J., Houben, L., Perego, C., Lee, B., … Klajn,
R. (2021). Electrostatic co-assembly of nanoparticles with oppositely charged
small molecules into static and dynamic superstructures. Nature Chemistry.
Springer Nature. https://doi.org/10.1038/s41557-021-00752-9
chicago: Bian, Tong, Andrea Gardin, Julius Gemen, Lothar Houben, Claudio Perego,
Byeongdu Lee, Nadav Elad, Zonglin Chu, Giovanni M. Pavan, and Rafal Klajn. “Electrostatic
Co-Assembly of Nanoparticles with Oppositely Charged Small Molecules into Static
and Dynamic Superstructures.” Nature Chemistry. Springer Nature, 2021.
https://doi.org/10.1038/s41557-021-00752-9.
ieee: T. Bian et al., “Electrostatic co-assembly of nanoparticles with oppositely
charged small molecules into static and dynamic superstructures,” Nature Chemistry,
vol. 13, no. 10. Springer Nature, pp. 940–949, 2021.
ista: Bian T, Gardin A, Gemen J, Houben L, Perego C, Lee B, Elad N, Chu Z, Pavan
GM, Klajn R. 2021. Electrostatic co-assembly of nanoparticles with oppositely
charged small molecules into static and dynamic superstructures. Nature Chemistry.
13(10), 940–949.
mla: Bian, Tong, et al. “Electrostatic Co-Assembly of Nanoparticles with Oppositely
Charged Small Molecules into Static and Dynamic Superstructures.” Nature Chemistry,
vol. 13, no. 10, Springer Nature, 2021, pp. 940–49, doi:10.1038/s41557-021-00752-9.
short: T. Bian, A. Gardin, J. Gemen, L. Houben, C. Perego, B. Lee, N. Elad, Z. Chu,
G.M. Pavan, R. Klajn, Nature Chemistry 13 (2021) 940–949.
date_created: 2023-08-01T09:34:54Z
date_published: 2021-10-01T00:00:00Z
date_updated: 2023-08-02T10:55:29Z
day: '01'
doi: 10.1038/s41557-021-00752-9
extern: '1'
external_id:
pmid:
- '34489564'
intvolume: ' 13'
issue: '10'
keyword:
- General Chemical Engineering
- General Chemistry
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/s41557-021-00752-9
month: '10'
oa: 1
oa_version: Published Version
page: 940-949
pmid: 1
publication: Nature Chemistry
publication_identifier:
eissn:
- 1755-4349
issn:
- 1755-4330
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Electrostatic co-assembly of nanoparticles with oppositely charged small molecules
into static and dynamic superstructures
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 13
year: '2021'
...
---
_id: '13358'
abstract:
- lang: eng
text: DNA nanotechnology offers a versatile toolbox for precise spatial and temporal
manipulation of matter on the nanoscale. However, rendering DNA-based systems
responsive to light has remained challenging. Herein, we describe the remote manipulation
of native (non-photoresponsive) chiral plasmonic molecules (CPMs) using light.
Our strategy is based on the use of a photoresponsive medium comprising a merocyanine-based
photoacid. Upon exposure to visible light, the medium decreases its pH, inducing
the formation of DNA triplex links, leading to a spatial reconfiguration of the
CPMs. The process can be reversed simply by turning the light off and it can be
repeated for multiple cycles. The degree of the overall chirality change in an
ensemble of CPMs depends on the CPM fraction undergoing reconfiguration, which,
remarkably, depends on and can be tuned by the intensity of incident light. Such
a dynamic, remotely controlled system could aid in further advancing DNA-based
devices and nanomaterials.
article_processing_charge: No
article_type: original
author:
- first_name: Joonas
full_name: Ryssy, Joonas
last_name: Ryssy
- first_name: Ashwin K.
full_name: Natarajan, Ashwin K.
last_name: Natarajan
- first_name: Jinhua
full_name: Wang, Jinhua
last_name: Wang
- first_name: Arttu J.
full_name: Lehtonen, Arttu J.
last_name: Lehtonen
- first_name: Minh‐Kha
full_name: Nguyen, Minh‐Kha
last_name: Nguyen
- first_name: Rafal
full_name: Klajn, Rafal
id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
last_name: Klajn
- first_name: Anton
full_name: Kuzyk, Anton
last_name: Kuzyk
citation:
ama: Ryssy J, Natarajan AK, Wang J, et al. Light‐responsive dynamic DNA‐origami‐based
plasmonic assemblies. Angewandte Chemie International Edition. 2021;60(11):5859-5863.
doi:10.1002/anie.202014963
apa: Ryssy, J., Natarajan, A. K., Wang, J., Lehtonen, A. J., Nguyen, M., Klajn,
R., & Kuzyk, A. (2021). Light‐responsive dynamic DNA‐origami‐based plasmonic
assemblies. Angewandte Chemie International Edition. Wiley. https://doi.org/10.1002/anie.202014963
chicago: Ryssy, Joonas, Ashwin K. Natarajan, Jinhua Wang, Arttu J. Lehtonen, Minh‐Kha
Nguyen, Rafal Klajn, and Anton Kuzyk. “Light‐responsive Dynamic DNA‐origami‐based
Plasmonic Assemblies.” Angewandte Chemie International Edition. Wiley,
2021. https://doi.org/10.1002/anie.202014963.
ieee: J. Ryssy et al., “Light‐responsive dynamic DNA‐origami‐based plasmonic
assemblies,” Angewandte Chemie International Edition, vol. 60, no. 11.
Wiley, pp. 5859–5863, 2021.
ista: Ryssy J, Natarajan AK, Wang J, Lehtonen AJ, Nguyen M, Klajn R, Kuzyk A. 2021.
Light‐responsive dynamic DNA‐origami‐based plasmonic assemblies. Angewandte Chemie
International Edition. 60(11), 5859–5863.
mla: Ryssy, Joonas, et al. “Light‐responsive Dynamic DNA‐origami‐based Plasmonic
Assemblies.” Angewandte Chemie International Edition, vol. 60, no. 11,
Wiley, 2021, pp. 5859–63, doi:10.1002/anie.202014963.
short: J. Ryssy, A.K. Natarajan, J. Wang, A.J. Lehtonen, M. Nguyen, R. Klajn, A.
Kuzyk, Angewandte Chemie International Edition 60 (2021) 5859–5863.
date_created: 2023-08-01T09:35:06Z
date_published: 2021-03-08T00:00:00Z
date_updated: 2023-08-02T07:22:23Z
day: '08'
doi: 10.1002/anie.202014963
extern: '1'
intvolume: ' 60'
issue: '11'
keyword:
- General Chemistry
- Catalysis
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1002/anie.202014963
month: '03'
oa: 1
oa_version: Published Version
page: 5859-5863
publication: Angewandte Chemie International Edition
publication_identifier:
eissn:
- 1521-3773
issn:
- 1433-7851
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1002/anie.202210394
scopus_import: '1'
status: public
title: Light‐responsive dynamic DNA‐origami‐based plasmonic assemblies
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 60
year: '2021'
...
---
_id: '13359'
abstract:
- lang: eng
text: Dissipative self-assembly is ubiquitous in nature, where it gives rise to
complex structures and functions such as self-healing, homeostasis, and camouflage.
These phenomena are enabled by the continuous conversion of energy stored in chemical
fuels, such as ATP. Over the past decade, an increasing number of synthetic chemically
driven systems have been reported that mimic the features of their natural counterparts.
At the same time, it has been shown that dissipative self-assembly can also be
fueled by light; these optically fueled systems have been developed in parallel
to the chemically fueled ones. In this perspective, we critically compare these
two classes of systems. Despite the complementarity and fundamental differences
between these two modes of dissipative self-assembly, our analysis reveals that
multiple analogies exist between chemically and light-fueled systems. We hope
that these considerations will facilitate further development of the field of
dissipative self-assembly.
article_processing_charge: No
article_type: original
author:
- first_name: Maren
full_name: Weißenfels, Maren
last_name: Weißenfels
- first_name: Julius
full_name: Gemen, Julius
last_name: Gemen
- first_name: Rafal
full_name: Klajn, Rafal
id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
last_name: Klajn
citation:
ama: 'Weißenfels M, Gemen J, Klajn R. Dissipative self-assembly: Fueling with chemicals
versus light. Chem. 2021;7(1):23-37. doi:10.1016/j.chempr.2020.11.025'
apa: 'Weißenfels, M., Gemen, J., & Klajn, R. (2021). Dissipative self-assembly:
Fueling with chemicals versus light. Chem. Elsevier. https://doi.org/10.1016/j.chempr.2020.11.025'
chicago: 'Weißenfels, Maren, Julius Gemen, and Rafal Klajn. “Dissipative Self-Assembly:
Fueling with Chemicals versus Light.” Chem. Elsevier, 2021. https://doi.org/10.1016/j.chempr.2020.11.025.'
ieee: 'M. Weißenfels, J. Gemen, and R. Klajn, “Dissipative self-assembly: Fueling
with chemicals versus light,” Chem, vol. 7, no. 1. Elsevier, pp. 23–37,
2021.'
ista: 'Weißenfels M, Gemen J, Klajn R. 2021. Dissipative self-assembly: Fueling
with chemicals versus light. Chem. 7(1), 23–37.'
mla: 'Weißenfels, Maren, et al. “Dissipative Self-Assembly: Fueling with Chemicals
versus Light.” Chem, vol. 7, no. 1, Elsevier, 2021, pp. 23–37, doi:10.1016/j.chempr.2020.11.025.'
short: M. Weißenfels, J. Gemen, R. Klajn, Chem 7 (2021) 23–37.
date_created: 2023-08-01T09:35:19Z
date_published: 2021-01-14T00:00:00Z
date_updated: 2023-08-07T10:04:28Z
day: '14'
doi: 10.1016/j.chempr.2020.11.025
extern: '1'
intvolume: ' 7'
issue: '1'
keyword:
- Materials Chemistry
- Biochemistry (medical)
- General Chemical Engineering
- Environmental Chemistry
- Biochemistry
- General Chemistry
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1016/j.chempr.2020.11.025
month: '01'
oa: 1
oa_version: Published Version
page: 23-37
publication: Chem
publication_identifier:
issn:
- 2451-9294
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Dissipative self-assembly: Fueling with chemicals versus light'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7
year: '2021'
...
---
_id: '13360'
abstract:
- lang: eng
text: 'Inorganic nanoparticles (NPs) exhibit a wide range of fascinating physicochemical
properties, many of which can be controlled by modulating the NP–NP coupling.
Controlling the self-assembly of NPs using light has traditionally been achieved
by functionalizing their surfaces with monolayers of photoswitchable molecules,
which can be reversibly isomerized between two or more states upon exposure to
different wavelengths of light. NPs whose assembly can be controlled by light
in a reversible fashion can find interesting applications. The chapter deals with
systems comprising mixtures of non-photoswitchable NPs and small-molecule photoacids
and photobases. Examples of light-controlled self-assembly of NPs hitherto reported
have been categorized into six distinct approaches. These are: functionalizing
NPs with monolayers of photoswitchable molecules, light-controlled adsorption/desorption
of photoswitchable molecules onto NPs, and light-induced electron transfer between
the particle''s inorganic core and the NP-bound ligands.'
article_processing_charge: No
author:
- first_name: Tong
full_name: Bian, Tong
last_name: Bian
- first_name: Zonglin
full_name: Chu, Zonglin
last_name: Chu
- first_name: Rafal
full_name: Klajn, Rafal
id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
last_name: Klajn
citation:
ama: 'Bian T, Chu Z, Klajn R. Controlling Self‐Assembly of Nanoparticles Using Light.
In: Giuseppone N, Walther A, eds. Out‐of‐Equilibrium (Supra)Molecular Systems
and Materials. Wiley; 2021:241-273. doi:10.1002/9783527821990.ch9'
apa: Bian, T., Chu, Z., & Klajn, R. (2021). Controlling Self‐Assembly of Nanoparticles
Using Light. In N. Giuseppone & A. Walther (Eds.), Out‐of‐Equilibrium (Supra)molecular
Systems and Materials (pp. 241–273). Wiley. https://doi.org/10.1002/9783527821990.ch9
chicago: Bian, Tong, Zonglin Chu, and Rafal Klajn. “Controlling Self‐Assembly of
Nanoparticles Using Light.” In Out‐of‐Equilibrium (Supra)Molecular Systems
and Materials, edited by Nicolas Giuseppone and Andreas Walther, 241–73. Wiley,
2021. https://doi.org/10.1002/9783527821990.ch9.
ieee: T. Bian, Z. Chu, and R. Klajn, “Controlling Self‐Assembly of Nanoparticles
Using Light,” in Out‐of‐Equilibrium (Supra)molecular Systems and Materials,
N. Giuseppone and A. Walther, Eds. Wiley, 2021, pp. 241–273.
ista: 'Bian T, Chu Z, Klajn R. 2021.Controlling Self‐Assembly of Nanoparticles Using
Light. In: Out‐of‐Equilibrium (Supra)molecular Systems and Materials. , 241–273.'
mla: Bian, Tong, et al. “Controlling Self‐Assembly of Nanoparticles Using Light.”
Out‐of‐Equilibrium (Supra)Molecular Systems and Materials, edited by Nicolas
Giuseppone and Andreas Walther, Wiley, 2021, pp. 241–73, doi:10.1002/9783527821990.ch9.
short: T. Bian, Z. Chu, R. Klajn, in:, N. Giuseppone, A. Walther (Eds.), Out‐of‐Equilibrium
(Supra)Molecular Systems and Materials, Wiley, 2021, pp. 241–273.
date_created: 2023-08-01T09:35:35Z
date_published: 2021-04-19T00:00:00Z
date_updated: 2023-08-02T07:28:09Z
day: '19'
doi: 10.1002/9783527821990.ch9
editor:
- first_name: Nicolas
full_name: Giuseppone, Nicolas
last_name: Giuseppone
- first_name: Andreas
full_name: Walther, Andreas
last_name: Walther
extern: '1'
language:
- iso: eng
month: '04'
oa_version: None
page: 241-273
publication: Out‐of‐Equilibrium (Supra)molecular Systems and Materials
publication_identifier:
eisbn:
- '9783527821990'
isbn:
- '9783527346158'
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Controlling Self‐Assembly of Nanoparticles Using Light
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '13453'
abstract:
- lang: eng
text: Most massive stars are born in binaries close enough for mass transfer episodes.
These modify the appearance, structure, and future evolution of both stars. We
compute the evolution of a 100-day-period binary, consisting initially of a 25
M⊙ star and a 17 M⊙ star, which experiences stable mass transfer. We focus on
the impact of mass accretion on the surface composition, internal rotation, and
structure of the accretor. To anchor our models, we show that our accretor broadly
reproduces the properties of ζ Ophiuchi, which has long been proposed to have
accreted mass before being ejected as a runaway star when the companion exploded.
We compare our accretor to models of single rotating stars and find that the later
and stronger spin-up provided by mass accretion produces significant differences.
Specifically, the core of the accretor retains higher spin at the end of the main
sequence, and a convective layer develops that changes its density profile. Moreover,
the surface of the accretor star is polluted by CNO-processed material donated
by the companion. Our models show effects of mass accretion in binaries that are
not captured in single rotating stellar models. This possibly impacts the further
evolution (either in a binary or as single stars), the final collapse, and the
resulting spin of the compact object.
article_number: '277'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: M.
full_name: Renzo, M.
last_name: Renzo
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
citation:
ama: 'Renzo M, Götberg YLL. Evolution of accretor stars in massive binaries: Broader
implications from modeling ζ Ophiuchi. The Astrophysical Journal. 2021;923(2).
doi:10.3847/1538-4357/ac29c5'
apa: 'Renzo, M., & Götberg, Y. L. L. (2021). Evolution of accretor stars in
massive binaries: Broader implications from modeling ζ Ophiuchi. The Astrophysical
Journal. American Astronomical Society. https://doi.org/10.3847/1538-4357/ac29c5'
chicago: 'Renzo, M., and Ylva Louise Linsdotter Götberg. “Evolution of Accretor
Stars in Massive Binaries: Broader Implications from Modeling ζ Ophiuchi.” The
Astrophysical Journal. American Astronomical Society, 2021. https://doi.org/10.3847/1538-4357/ac29c5.'
ieee: 'M. Renzo and Y. L. L. Götberg, “Evolution of accretor stars in massive binaries:
Broader implications from modeling ζ Ophiuchi,” The Astrophysical Journal,
vol. 923, no. 2. American Astronomical Society, 2021.'
ista: 'Renzo M, Götberg YLL. 2021. Evolution of accretor stars in massive binaries:
Broader implications from modeling ζ Ophiuchi. The Astrophysical Journal. 923(2),
277.'
mla: 'Renzo, M., and Ylva Louise Linsdotter Götberg. “Evolution of Accretor Stars
in Massive Binaries: Broader Implications from Modeling ζ Ophiuchi.” The Astrophysical
Journal, vol. 923, no. 2, 277, American Astronomical Society, 2021, doi:10.3847/1538-4357/ac29c5.'
short: M. Renzo, Y.L.L. Götberg, The Astrophysical Journal 923 (2021).
date_created: 2023-08-03T10:10:48Z
date_published: 2021-12-29T00:00:00Z
date_updated: 2023-08-21T11:59:34Z
day: '29'
doi: 10.3847/1538-4357/ac29c5
extern: '1'
external_id:
arxiv:
- '2107.10933'
intvolume: ' 923'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2107.10933
month: '12'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Evolution of accretor stars in massive binaries: Broader implications from
modeling ζ Ophiuchi'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 923
year: '2021'
...
---
_id: '13454'
abstract:
- lang: eng
text: Helium star–carbon-oxygen white dwarf (CO WD) binaries are potential single-degenerate
progenitor systems of thermonuclear supernovae. Revisiting a set of binary evolution
calculations using the stellar evolution code MESA, we refine our previous predictions
about which systems can lead to a thermonuclear supernova and then characterize
the properties of the helium star donor at the time of explosion. We convert these
model properties to near-UV/optical magnitudes assuming a blackbody spectrum and
support this approach using a matched stellar atmosphere model. These models will
be valuable to compare with pre-explosion imaging for future supernovae, though
we emphasize the observational difficulty of detecting extremely blue companions.
The pre-explosion source detected in association with SN 2012Z has been interpreted
as a helium star binary containing an initially ultra-massive WD in a multiday
orbit. However, extending our binary models to initial CO WD masses of up to 1.2
M⊙, we find that these systems undergo off-center carbon ignitions and thus are
not expected to produce thermonuclear supernovae. This tension suggests that,
if SN 2012Z is associated with a helium star–WD binary, then the pre-explosion
optical light from the system must be significantly modified by the binary environment
and/or the WD does not have a carbon-rich interior composition.
article_number: '241'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Tin Long Sunny
full_name: Wong, Tin Long Sunny
last_name: Wong
- first_name: Josiah
full_name: Schwab, Josiah
last_name: Schwab
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
citation:
ama: Wong TLS, Schwab J, Götberg YLL. Pre-explosion properties of Helium star donors
to thermonuclear supernovae. The Astrophysical Journal. 2021;922(2). doi:10.3847/1538-4357/ac27ae
apa: Wong, T. L. S., Schwab, J., & Götberg, Y. L. L. (2021). Pre-explosion properties
of Helium star donors to thermonuclear supernovae. The Astrophysical Journal.
American Astronomical Society. https://doi.org/10.3847/1538-4357/ac27ae
chicago: Wong, Tin Long Sunny, Josiah Schwab, and Ylva Louise Linsdotter Götberg.
“Pre-Explosion Properties of Helium Star Donors to Thermonuclear Supernovae.”
The Astrophysical Journal. American Astronomical Society, 2021. https://doi.org/10.3847/1538-4357/ac27ae.
ieee: T. L. S. Wong, J. Schwab, and Y. L. L. Götberg, “Pre-explosion properties
of Helium star donors to thermonuclear supernovae,” The Astrophysical Journal,
vol. 922, no. 2. American Astronomical Society, 2021.
ista: Wong TLS, Schwab J, Götberg YLL. 2021. Pre-explosion properties of Helium
star donors to thermonuclear supernovae. The Astrophysical Journal. 922(2), 241.
mla: Wong, Tin Long Sunny, et al. “Pre-Explosion Properties of Helium Star Donors
to Thermonuclear Supernovae.” The Astrophysical Journal, vol. 922, no.
2, 241, American Astronomical Society, 2021, doi:10.3847/1538-4357/ac27ae.
short: T.L.S. Wong, J. Schwab, Y.L.L. Götberg, The Astrophysical Journal 922 (2021).
date_created: 2023-08-03T10:10:58Z
date_published: 2021-12-03T00:00:00Z
date_updated: 2023-08-21T11:52:05Z
day: '03'
doi: 10.3847/1538-4357/ac27ae
extern: '1'
external_id:
arxiv:
- '2109.14817'
intvolume: ' 922'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2109.14817
month: '12'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Pre-explosion properties of Helium star donors to thermonuclear supernovae
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 922
year: '2021'
...
---
_id: '13455'
abstract:
- lang: eng
text: The majority of massive stars live in binary or multiple systems and will
interact with a companion during their lifetimes, which helps to explain the observed
diversity of core-collapse supernovae. Donor stars in binary systems can lose
most of their hydrogen-rich envelopes through mass transfer. As a result, not
only are the surface properties affected, but so is the core structure. However,
most calculations of the core-collapse properties of massive stars rely on single-star
models. We present a systematic study of the difference between the pre-supernova
structures of single stars and stars of the same initial mass (11–21 M⊙) that
have been stripped due to stable post-main-sequence mass transfer at solar metallicity.
We present the pre-supernova core composition with novel diagrams that give an
intuitive representation of the isotope distribution. As shown in previous studies,
at the edge of the carbon-oxygen core, the binary-stripped star models contain
an extended gradient of carbon, oxygen, and neon. This layer remains until core
collapse and is more extended in mass for higher initial stellar masses. It originates
from the receding of the convective helium core during core helium burning in
binary-stripped stars, which does not occur in single-star models. We find that
this same evolutionary phase leads to systematic differences in the final density
and nuclear energy generation profiles. Binary-stripped star models have systematically
higher total masses of carbon at the moment of core collapse compared to single-star
models, which likely results in systematically different supernova yields. In
about half of our models, the silicon-burning and oxygen-rich layers merge after
core silicon burning. We discuss the implications of our findings for the “explodability”,
supernova observations, and nucleosynthesis of these stars. Our models are publicly
available and can be readily used as input for detailed supernova simulations.
article_number: A58
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: E.
full_name: Laplace, E.
last_name: Laplace
- first_name: S.
full_name: Justham, S.
last_name: Justham
- first_name: M.
full_name: Renzo, M.
last_name: Renzo
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
- first_name: R.
full_name: Farmer, R.
last_name: Farmer
- first_name: D.
full_name: Vartanyan, D.
last_name: Vartanyan
- first_name: S. E.
full_name: de Mink, S. E.
last_name: de Mink
citation:
ama: 'Laplace E, Justham S, Renzo M, et al. Different to the core: The pre-supernova
structures of massive single and binary-stripped stars. Astronomy & Astrophysics.
2021;656. doi:10.1051/0004-6361/202140506'
apa: 'Laplace, E., Justham, S., Renzo, M., Götberg, Y. L. L., Farmer, R., Vartanyan,
D., & de Mink, S. E. (2021). Different to the core: The pre-supernova structures
of massive single and binary-stripped stars. Astronomy & Astrophysics.
EDP Sciences. https://doi.org/10.1051/0004-6361/202140506'
chicago: 'Laplace, E., S. Justham, M. Renzo, Ylva Louise Linsdotter Götberg, R.
Farmer, D. Vartanyan, and S. E. de Mink. “Different to the Core: The Pre-Supernova
Structures of Massive Single and Binary-Stripped Stars.” Astronomy & Astrophysics.
EDP Sciences, 2021. https://doi.org/10.1051/0004-6361/202140506.'
ieee: 'E. Laplace et al., “Different to the core: The pre-supernova structures
of massive single and binary-stripped stars,” Astronomy & Astrophysics,
vol. 656. EDP Sciences, 2021.'
ista: 'Laplace E, Justham S, Renzo M, Götberg YLL, Farmer R, Vartanyan D, de Mink
SE. 2021. Different to the core: The pre-supernova structures of massive single
and binary-stripped stars. Astronomy & Astrophysics. 656, A58.'
mla: 'Laplace, E., et al. “Different to the Core: The Pre-Supernova Structures of
Massive Single and Binary-Stripped Stars.” Astronomy & Astrophysics,
vol. 656, A58, EDP Sciences, 2021, doi:10.1051/0004-6361/202140506.'
short: E. Laplace, S. Justham, M. Renzo, Y.L.L. Götberg, R. Farmer, D. Vartanyan,
S.E. de Mink, Astronomy & Astrophysics 656 (2021).
date_created: 2023-08-03T10:11:09Z
date_published: 2021-12-02T00:00:00Z
date_updated: 2023-08-21T11:49:15Z
day: '02'
doi: 10.1051/0004-6361/202140506
external_id:
arxiv:
- '2102.05036'
intvolume: ' 656'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1051/0004-6361/202140506
month: '12'
oa: 1
oa_version: Published Version
publication: Astronomy & Astrophysics
publication_identifier:
eissn:
- 1432-0746
issn:
- 0004-6361
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Different to the core: The pre-supernova structures of massive single and
binary-stripped stars'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 656
year: '2021'
...
---
_id: '13456'
abstract:
- lang: eng
text: While most simulations of the epoch of reionization have focused on single-stellar
populations in star-forming dwarf galaxies, products of binary evolution are expected
to significantly contribute to emissions of hydrogen-ionizing photons. Among these
products are stripped stars (or helium stars), which have their envelopes stripped
from interactions with binary companions, leaving an exposed helium core. Previous
work has suggested these stripped stars can dominate the Lyman Continuum (LyC)
photon output of high-redshift, low-luminosity galaxies post-starburst. Other
sources of hard radiation in the early universe include zero-metallicity Population
iii stars, which may have similar spectral energy distribution (SED) properties
to galaxies with radiation dominated by stripped-star emissions. Here, we use
four metrics (the power-law exponent over wavelength intervals 240–500 Å, 600–900
Å, and 1200–2000 Å, and the ratio of total luminosity in FUV wavelengths to LyC
wavelengths) to compare the SEDs of simulated galaxies with only single-stellar
evolution, galaxies containing stripped stars, and galaxies containing Population
iii stars, with four different initial mass functions (IMFs). We find that stripped
stars significantly alter SEDs in the LyC range of galaxies at the epoch of reionization.
SEDs in galaxies with stripped stars have lower power-law indices in the LyC range
and lower FUV to LyC luminosity ratios. These differences in SEDs are present
at all considered luminosities (${M}_{\mathrm{UV}}\gt -15$, AB system), and are
most pronounced for lower-luminosity galaxies. Intrinsic SEDs as well as those
with interstellar medium absorption of galaxies with stripped stars and Population
iii stars are found to be distinct for all tested Population iii IMFs.
article_number: '5'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Elizabeth
full_name: Berzin, Elizabeth
last_name: Berzin
- first_name: Amy
full_name: Secunda, Amy
last_name: Secunda
- first_name: Renyue
full_name: Cen, Renyue
last_name: Cen
- first_name: Alexander
full_name: Menegas, Alexander
last_name: Menegas
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
citation:
ama: Berzin E, Secunda A, Cen R, Menegas A, Götberg YLL. Spectral signatures of
population III and envelope-stripped stars in galaxies at the epoch of reionization.
The Astrophysical Journal. 2021;918(1). doi:10.3847/1538-4357/ac0af6
apa: Berzin, E., Secunda, A., Cen, R., Menegas, A., & Götberg, Y. L. L. (2021).
Spectral signatures of population III and envelope-stripped stars in galaxies
at the epoch of reionization. The Astrophysical Journal. American Astronomical
Society. https://doi.org/10.3847/1538-4357/ac0af6
chicago: Berzin, Elizabeth, Amy Secunda, Renyue Cen, Alexander Menegas, and Ylva
Louise Linsdotter Götberg. “Spectral Signatures of Population III and Envelope-Stripped
Stars in Galaxies at the Epoch of Reionization.” The Astrophysical Journal.
American Astronomical Society, 2021. https://doi.org/10.3847/1538-4357/ac0af6.
ieee: E. Berzin, A. Secunda, R. Cen, A. Menegas, and Y. L. L. Götberg, “Spectral
signatures of population III and envelope-stripped stars in galaxies at the epoch
of reionization,” The Astrophysical Journal, vol. 918, no. 1. American
Astronomical Society, 2021.
ista: Berzin E, Secunda A, Cen R, Menegas A, Götberg YLL. 2021. Spectral signatures
of population III and envelope-stripped stars in galaxies at the epoch of reionization.
The Astrophysical Journal. 918(1), 5.
mla: Berzin, Elizabeth, et al. “Spectral Signatures of Population III and Envelope-Stripped
Stars in Galaxies at the Epoch of Reionization.” The Astrophysical Journal,
vol. 918, no. 1, 5, American Astronomical Society, 2021, doi:10.3847/1538-4357/ac0af6.
short: E. Berzin, A. Secunda, R. Cen, A. Menegas, Y.L.L. Götberg, The Astrophysical
Journal 918 (2021).
date_created: 2023-08-03T10:11:24Z
date_published: 2021-08-27T00:00:00Z
date_updated: 2023-08-21T11:44:50Z
day: '27'
doi: 10.3847/1538-4357/ac0af6
extern: '1'
external_id:
arxiv:
- '2102.08408'
intvolume: ' 918'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3847/1538-4357/ac0af6
month: '08'
oa: 1
oa_version: Published Version
publication: The Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Spectral signatures of population III and envelope-stripped stars in galaxies
at the epoch of reionization
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 918
year: '2021'
...
---
_id: '13457'
abstract:
- lang: eng
text: "Context. Observations of massive stars in open clusters younger than ∼8 Myr
have shown that a majority of them are in binary systems, most of which will interact
during their life. While these can be used as a proxy of the initial multiplicity
properties, studying populations of massive stars older than ∼20 Myr allows us
to probe the outcome of these interactions after a significant number of systems
have experienced mass and angular momentum transfer and may even have merged.\r\n\r\nAims.
Using multi-epoch integral-field spectroscopy, we aim to investigate the multiplicity
properties of the massive-star population in the dense core of the ∼40 Myr old
cluster NGC 330 in the Small Magellanic Cloud in order to search for possible
imprints of stellar evolution on the multiplicity properties.\r\n\r\nMethods.
We obtained six epochs of VLT/MUSE observations operated in wide-field mode with
the extended wavelength setup and supported by adaptive optics. We extracted spectra
and measured radial velocities for stars brighter than mF814W = 19. We identified
single-lined spectroscopic binaries through significant RV variability with a
peak-to-peak amplitude larger than 20 km s−1. We also identified double-lined
spectroscopic binaries, and quantified the observational biases for binary detection.
In particular, we took into account that binary systems with similar line strengths
are difficult to detect in our data set.\r\n\r\nResults. The observed spectroscopic
binary fraction among stars brighter than mF814W = 19 (approximately 5.5 M⊙ on
the main sequence) is fSBobs = 13.2 ± 2.0%. Considering period and mass ratio
ranges from log(P) = 0.15−3.5 (about 1.4 to 3160 d), q = 0.1−1.0, and a representative
set of orbital parameter distributions, we find a bias-corrected close binary
fraction of fcl = 34−7+8%. This fraction seems to decline for the fainter stars,
which indicates either that the close binary fraction drops in the B-type domain,
or that the period distribution becomes more heavily weighted toward longer orbital
periods. We further find that both fractions vary strongly in different regions
of the color-magnitude diagram, which corresponds to different evolutionary stages.
This probably reveals the imprint of the binary history of different groups of
stars. In particular, we find that the observed spectroscopic binary fraction
of Be stars (fSBobs = 2 ± 2%) is significantly lower than that of B-type stars
(fSBobs = 9 ± 2%).\r\n\r\nConclusions. We provide the first homogeneous radial
velocity study of a large sample of B-type stars at a low metallicity ([Fe/H]
≲ −1.0). The overall bias-corrected close binary fraction (log(P) < 3.5 d) of
the B-star population in NGC 330 is lower than the fraction reported for younger
Galactic and Large Magellanic Cloud clusters in previous works. More data are
needed, however, to establish whether the observed differences are caused by an
age or a metallicity effect."
article_number: A70
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: J.
full_name: Bodensteiner, J.
last_name: Bodensteiner
- first_name: H.
full_name: Sana, H.
last_name: Sana
- first_name: C.
full_name: Wang, C.
last_name: Wang
- first_name: N.
full_name: Langer, N.
last_name: Langer
- first_name: L.
full_name: Mahy, L.
last_name: Mahy
- first_name: G.
full_name: Banyard, G.
last_name: Banyard
- first_name: A.
full_name: de Koter, A.
last_name: de Koter
- first_name: S. E.
full_name: de Mink, S. E.
last_name: de Mink
- first_name: C. J.
full_name: Evans, C. J.
last_name: Evans
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
- first_name: L. R.
full_name: Patrick, L. R.
last_name: Patrick
- first_name: F. R. N.
full_name: Schneider, F. R. N.
last_name: Schneider
- first_name: F.
full_name: Tramper, F.
last_name: Tramper
citation:
ama: Bodensteiner J, Sana H, Wang C, et al. The young massive SMC cluster NGC 330
seen by MUSE. II. Multiplicity properties of the massive-star population. Astronomy
& Astrophysics. 2021;652. doi:10.1051/0004-6361/202140507
apa: Bodensteiner, J., Sana, H., Wang, C., Langer, N., Mahy, L., Banyard, G., …
Tramper, F. (2021). The young massive SMC cluster NGC 330 seen by MUSE. II. Multiplicity
properties of the massive-star population. Astronomy & Astrophysics.
EDP Sciences. https://doi.org/10.1051/0004-6361/202140507
chicago: Bodensteiner, J., H. Sana, C. Wang, N. Langer, L. Mahy, G. Banyard, A.
de Koter, et al. “The Young Massive SMC Cluster NGC 330 Seen by MUSE. II. Multiplicity
Properties of the Massive-Star Population.” Astronomy & Astrophysics.
EDP Sciences, 2021. https://doi.org/10.1051/0004-6361/202140507.
ieee: J. Bodensteiner et al., “The young massive SMC cluster NGC 330 seen
by MUSE. II. Multiplicity properties of the massive-star population,” Astronomy
& Astrophysics, vol. 652. EDP Sciences, 2021.
ista: Bodensteiner J, Sana H, Wang C, Langer N, Mahy L, Banyard G, de Koter A, de
Mink SE, Evans CJ, Götberg YLL, Patrick LR, Schneider FRN, Tramper F. 2021. The
young massive SMC cluster NGC 330 seen by MUSE. II. Multiplicity properties of
the massive-star population. Astronomy & Astrophysics. 652, A70.
mla: Bodensteiner, J., et al. “The Young Massive SMC Cluster NGC 330 Seen by MUSE.
II. Multiplicity Properties of the Massive-Star Population.” Astronomy &
Astrophysics, vol. 652, A70, EDP Sciences, 2021, doi:10.1051/0004-6361/202140507.
short: J. Bodensteiner, H. Sana, C. Wang, N. Langer, L. Mahy, G. Banyard, A. de
Koter, S.E. de Mink, C.J. Evans, Y.L.L. Götberg, L.R. Patrick, F.R.N. Schneider,
F. Tramper, Astronomy & Astrophysics 652 (2021).
date_created: 2023-08-03T10:11:34Z
date_published: 2021-08-12T00:00:00Z
date_updated: 2023-08-21T11:49:36Z
day: '12'
doi: 10.1051/0004-6361/202140507
extern: '1'
external_id:
arxiv:
- '2104.13409'
intvolume: ' 652'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1051/0004-6361/202140507
month: '08'
oa: 1
oa_version: Published Version
publication: Astronomy & Astrophysics
publication_identifier:
eissn:
- 1432-0746
issn:
- 0004-6361
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: The young massive SMC cluster NGC 330 seen by MUSE. II. Multiplicity properties
of the massive-star population
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 652
year: '2021'
...
---
_id: '13458'
abstract:
- lang: eng
text: Most massive stars experience binary interactions in their lifetimes that
can alter both the surface and core structure of the stripped star with significant
effects on their ultimate fate as core-collapse supernovae. However, core-collapse
supernovae simulations to date have focused almost exclusively on the evolution
of single stars. We present a systematic simulation study of single and binary-stripped
stars with the same initial mass as candidates for core-collapse supernovae (11–21
M⊙). Generally, we find that binary-stripped stars core tend to have a smaller
compactness parameter, with a more prominent, deeper silicon/oxygen interface,
and explode preferentially to the corresponding single stars of the same initial
mass. Such a dichotomy of behavior between these two modes of evolution would
have important implications for supernovae statistics, including the final neutron
star masses, explosion energies, and nucleosynthetic yields. Binary-stripped remnants
are also well poised to populate the possible mass gap between the heaviest neutron
stars and the lightest black holes. Our work presents an improvement along two
fronts, as we self-consistently account for the pre-collapse stellar evolution
and the subsequent explosion outcome. Even so, our results emphasize the need
for more detailed stellar evolutionary models to capture the sensitive nature
of explosion outcome.
article_number: L5
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: David
full_name: Vartanyan, David
last_name: Vartanyan
- first_name: Eva
full_name: Laplace, Eva
last_name: Laplace
- first_name: Mathieu
full_name: Renzo, Mathieu
last_name: Renzo
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
- first_name: Adam
full_name: Burrows, Adam
last_name: Burrows
- first_name: Selma E.
full_name: de Mink, Selma E.
last_name: de Mink
citation:
ama: Vartanyan D, Laplace E, Renzo M, Götberg YLL, Burrows A, de Mink SE. Binary-stripped
stars as core-collapse supernovae progenitors. The Astrophysical Journal Letters.
2021;916(1). doi:10.3847/2041-8213/ac0b42
apa: Vartanyan, D., Laplace, E., Renzo, M., Götberg, Y. L. L., Burrows, A., &
de Mink, S. E. (2021). Binary-stripped stars as core-collapse supernovae progenitors.
The Astrophysical Journal Letters. American Astronomical Society. https://doi.org/10.3847/2041-8213/ac0b42
chicago: Vartanyan, David, Eva Laplace, Mathieu Renzo, Ylva Louise Linsdotter Götberg,
Adam Burrows, and Selma E. de Mink. “Binary-Stripped Stars as Core-Collapse Supernovae
Progenitors.” The Astrophysical Journal Letters. American Astronomical
Society, 2021. https://doi.org/10.3847/2041-8213/ac0b42.
ieee: D. Vartanyan, E. Laplace, M. Renzo, Y. L. L. Götberg, A. Burrows, and S. E.
de Mink, “Binary-stripped stars as core-collapse supernovae progenitors,” The
Astrophysical Journal Letters, vol. 916, no. 1. American Astronomical Society,
2021.
ista: Vartanyan D, Laplace E, Renzo M, Götberg YLL, Burrows A, de Mink SE. 2021.
Binary-stripped stars as core-collapse supernovae progenitors. The Astrophysical
Journal Letters. 916(1), L5.
mla: Vartanyan, David, et al. “Binary-Stripped Stars as Core-Collapse Supernovae
Progenitors.” The Astrophysical Journal Letters, vol. 916, no. 1, L5, American
Astronomical Society, 2021, doi:10.3847/2041-8213/ac0b42.
short: D. Vartanyan, E. Laplace, M. Renzo, Y.L.L. Götberg, A. Burrows, S.E. de Mink,
The Astrophysical Journal Letters 916 (2021).
date_created: 2023-08-03T10:11:45Z
date_published: 2021-07-23T00:00:00Z
date_updated: 2023-08-21T11:37:48Z
day: '23'
doi: 10.3847/2041-8213/ac0b42
extern: '1'
external_id:
arxiv:
- '2104.03317'
intvolume: ' 916'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2104.03317
month: '07'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal Letters
publication_identifier:
eissn:
- 2041-8213
issn:
- 2041-8205
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Binary-stripped stars as core-collapse supernovae progenitors
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 916
year: '2021'
...
---
_id: '13459'
abstract:
- lang: eng
text: The B emission-line stars are rapid rotators that were probably spun up by
mass and angular momentum accretion through mass transfer in an interacting binary.
Mass transfer will strip the donor star of its envelope to create a small and
hot subdwarf remnant. Here we report on Hubble Space Telescope/STIS far-ultraviolet
spectroscopy of a sample of Be stars that reveals the presence of the hot sdO
companion through the calculation of cross-correlation functions of the observed
and model spectra. We clearly detect the spectral signature of the sdO star in
10 of the 13 stars in the sample, and the spectral signals indicate that the sdO
stars are hot, relatively faint, and slowly rotating as predicted by models. A
comparison of their temperatures and radii with evolutionary tracks indicates
that the sdO stars occupy the relatively long-lived, He-core burning stage. Only
1 of the 10 detections was a known binary prior to this investigation, which emphasizes
the difficulty of finding such Be+sdO binaries through optical spectroscopy. However,
these results and others indicate that many Be stars probably host hot subdwarf
companions.
article_number: '248'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Luqian
full_name: Wang, Luqian
last_name: Wang
- first_name: Douglas R.
full_name: Gies, Douglas R.
last_name: Gies
- first_name: Geraldine J.
full_name: Peters, Geraldine J.
last_name: Peters
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
- first_name: S. Drew
full_name: Chojnowski, S. Drew
last_name: Chojnowski
- first_name: Kathryn V.
full_name: Lester, Kathryn V.
last_name: Lester
- first_name: Steve B.
full_name: Howell, Steve B.
last_name: Howell
citation:
ama: Wang L, Gies DR, Peters GJ, et al. The detection and characterization of Be+sdO
binaries from HST/STIS FUV spectroscopy. The Astronomical Journal. 2021;161(5).
doi:10.3847/1538-3881/abf144
apa: Wang, L., Gies, D. R., Peters, G. J., Götberg, Y. L. L., Chojnowski, S. D.,
Lester, K. V., & Howell, S. B. (2021). The detection and characterization
of Be+sdO binaries from HST/STIS FUV spectroscopy. The Astronomical Journal.
American Astronomical Society. https://doi.org/10.3847/1538-3881/abf144
chicago: Wang, Luqian, Douglas R. Gies, Geraldine J. Peters, Ylva Louise Linsdotter
Götberg, S. Drew Chojnowski, Kathryn V. Lester, and Steve B. Howell. “The Detection
and Characterization of Be+sdO Binaries from HST/STIS FUV Spectroscopy.” The
Astronomical Journal. American Astronomical Society, 2021. https://doi.org/10.3847/1538-3881/abf144.
ieee: L. Wang et al., “The detection and characterization of Be+sdO binaries
from HST/STIS FUV spectroscopy,” The Astronomical Journal, vol. 161, no.
5. American Astronomical Society, 2021.
ista: Wang L, Gies DR, Peters GJ, Götberg YLL, Chojnowski SD, Lester KV, Howell
SB. 2021. The detection and characterization of Be+sdO binaries from HST/STIS
FUV spectroscopy. The Astronomical Journal. 161(5), 248.
mla: Wang, Luqian, et al. “The Detection and Characterization of Be+sdO Binaries
from HST/STIS FUV Spectroscopy.” The Astronomical Journal, vol. 161, no.
5, 248, American Astronomical Society, 2021, doi:10.3847/1538-3881/abf144.
short: L. Wang, D.R. Gies, G.J. Peters, Y.L.L. Götberg, S.D. Chojnowski, K.V. Lester,
S.B. Howell, The Astronomical Journal 161 (2021).
date_created: 2023-08-03T10:11:57Z
date_published: 2021-05-04T00:00:00Z
date_updated: 2023-08-21T11:35:50Z
day: '04'
doi: 10.3847/1538-3881/abf144
extern: '1'
external_id:
arxiv:
- '2103.13642'
intvolume: ' 161'
issue: '5'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2103.13642
month: '05'
oa: 1
oa_version: Preprint
publication: The Astronomical Journal
publication_identifier:
eissn:
- 1538-3881
issn:
- 0004-6256
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: The detection and characterization of Be+sdO binaries from HST/STIS FUV spectroscopy
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 161
year: '2021'
...
---
_id: '13995'
abstract:
- lang: eng
text: Shape resonances play a central role in many areas of science, but the real-time
measurement of the associated many-body dynamics remains challenging. Here, we
present measurements of recoil frame angle-resolved photoionization delays in
the vicinity of shape resonances of CF4. This technique provides insights into
the spatiotemporal photoionization dynamics of molecular shape resonances. We
find delays of up to ∼600 as in the ionization out of the highest occupied molecular
orbital (HOMO) with a strong dependence on the emission direction and a pronounced
asymmetry along the dissociation axis. Comparison with quantum-scattering calculations
traces the asymmetries to the interference of a small subset of partial waves
at low kinetic energies and, additionally, to the interference of two overlapping
shape resonances in the HOMO-1 channel. Our experimental and theoretical results
establish a broadly applicable approach to space- and time-resolved photoionization
dynamics in the molecular frame.
article_number: abj8121
article_processing_charge: No
article_type: original
author:
- first_name: Saijoscha
full_name: Heck, Saijoscha
last_name: Heck
- first_name: Denitsa Rangelova
full_name: Baykusheva, Denitsa Rangelova
id: 71b4d059-2a03-11ee-914d-dfa3beed6530
last_name: Baykusheva
- first_name: Meng
full_name: Han, Meng
last_name: Han
- first_name: Jia-Bao
full_name: Ji, Jia-Bao
last_name: Ji
- first_name: Conaill
full_name: Perry, Conaill
last_name: Perry
- first_name: Xiaochun
full_name: Gong, Xiaochun
last_name: Gong
- first_name: Hans Jakob
full_name: Wörner, Hans Jakob
last_name: Wörner
citation:
ama: Heck S, Baykusheva DR, Han M, et al. Attosecond interferometry of shape resonances
in the recoil frame of CF4. Science Advances. 2021;7(49). doi:10.1126/sciadv.abj8121
apa: Heck, S., Baykusheva, D. R., Han, M., Ji, J.-B., Perry, C., Gong, X., &
Wörner, H. J. (2021). Attosecond interferometry of shape resonances in the recoil
frame of CF4. Science Advances. American Association for the Advancement
of Science. https://doi.org/10.1126/sciadv.abj8121
chicago: Heck, Saijoscha, Denitsa Rangelova Baykusheva, Meng Han, Jia-Bao Ji, Conaill
Perry, Xiaochun Gong, and Hans Jakob Wörner. “Attosecond Interferometry of Shape
Resonances in the Recoil Frame of CF4.” Science Advances. American Association
for the Advancement of Science, 2021. https://doi.org/10.1126/sciadv.abj8121.
ieee: S. Heck et al., “Attosecond interferometry of shape resonances in the
recoil frame of CF4,” Science Advances, vol. 7, no. 49. American Association
for the Advancement of Science, 2021.
ista: Heck S, Baykusheva DR, Han M, Ji J-B, Perry C, Gong X, Wörner HJ. 2021. Attosecond
interferometry of shape resonances in the recoil frame of CF4. Science Advances.
7(49), abj8121.
mla: Heck, Saijoscha, et al. “Attosecond Interferometry of Shape Resonances in the
Recoil Frame of CF4.” Science Advances, vol. 7, no. 49, abj8121, American
Association for the Advancement of Science, 2021, doi:10.1126/sciadv.abj8121.
short: S. Heck, D.R. Baykusheva, M. Han, J.-B. Ji, C. Perry, X. Gong, H.J. Wörner,
Science Advances 7 (2021).
date_created: 2023-08-09T13:09:02Z
date_published: 2021-12-03T00:00:00Z
date_updated: 2023-08-22T07:30:25Z
day: '03'
doi: 10.1126/sciadv.abj8121
extern: '1'
external_id:
pmid:
- '34860540'
intvolume: ' 7'
issue: '49'
keyword:
- Multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1126/sciadv.abj8121
month: '12'
oa: 1
oa_version: Published Version
pmid: 1
publication: Science Advances
publication_identifier:
eissn:
- 2375-2548
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: Attosecond interferometry of shape resonances in the recoil frame of CF4
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7
year: '2021'
...