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Hot subdwarf stars and their connection to thermonuclear supernovae

Geier, S. and Kupfer, T. and Ziegerer, E. and Heber, U. and Németh, P. and Irrgang, A. (2016) Hot subdwarf stars and their connection to thermonuclear supernovae. Journal of Physics: Conference Series, 728 . Art. No. 072017. ISSN 1742-6596. doi:10.1088/1742-6596/728/7/072017. https://resolver.caltech.edu/CaltechAUTHORS:20160810-125821420

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Abstract

Hot subdwarf stars (sdO/Bs) are evolved core helium-burning stars with very thin hydrogen envelopes, which can be formed by common envelope ejection. Close sdB binaries with massive white dwarf (WD) companions are potential progenitors of thermonuclear supernovae type Ia (SN Ia). We discovered such a progenitor candidate as well as a candidate for a surviving companion star, which escapes from the Galaxy. More candidates for both types of objects have been found by crossmatching known sdB stars with proper motion and light curve catalogues. The Gaia mission will provide accurate astrometry and light curves of all the stars in our hot subdwarf sample and will allow us to compile a much larger all-sky catalogue of those stars. In this way we expect to find hundreds of progenitor binaries and ejected companions.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1088/1742-6596/728/7/072017DOIArticle
http://iopscience.iop.org/article/10.1088/1742-6596/728/7/072017/metaPublisherArticle
https://arxiv.org/abs/1604.05469arXivDiscussion Paper
ORCID:
AuthorORCID
Geier, S.0000-0002-3948-9339
Kupfer, T.0000-0002-6540-1484
Heber, U.0000-0001-7798-6769
Irrgang, A.0000-0002-0465-3725
Additional Information:© 2016 Published under licence by IOP Publishing Ltd. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
DOI:10.1088/1742-6596/728/7/072017
Record Number:CaltechAUTHORS:20160810-125821420
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20160810-125821420
Official Citation:S. Geier et al 2016 J. Phys.: Conf. Ser. 728 072017
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:69542
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:10 Aug 2016 21:45
Last Modified:11 Nov 2021 04:16

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