Analysis of two eclipsing hot subdwarf binaries with a low mass stellar and a brown dwarf companion

Schaffenroth V, Geier S, Heber U, Drechsel H, Østensen RH, Maxted PF, Kupfer T, Barlow BN (2011)

Publication Type: Conference contribution

Publication year: 2011

Journal

Book Volume: 1331

Pages Range: 174-181

Conference Proceedings Title: AIP Conference Proceedings

ISBN: 9780735408869

DOI: 10.1063/1.3570971

Abstract

The formation of hot subdwarf stars (sdBs), which are core helium-burning stars located on the extended horizontal branch, is still not understood. Many of the known hot subdwarf stars reside in close binary systems with short orbital periods between a few hours and a few days with either M star or white dwarf companions. Common envelope ejection is the most probable formation channel. Among these, eclipsing systems are of special importance because it is possible to constrain the parameters of both components tightly by combining spectroscopic and light curve analyses. We report the discovery of two eclipsing binaries with a brown dwarf (<0.07 M⊙) and a 0.15 M ⊙ late main sequence star companion in close orbits around sdB stars. © 2011 American Institute of Physics.

Authors with CRIS profile

Involved external institutions

University of Keele United Kingdom (GB) Katholieke Universiteit Leuven (KUL) / Catholic University of Leuven Belgium (BE) University of North Carolina at Chapel Hill United States (USA) (US)

How to cite

APA:

Schaffenroth, V., Geier, S., Heber, U., Drechsel, H., Østensen, R.H., Maxted, P.F.,... Barlow, B.N. (2011). Analysis of two eclipsing hot subdwarf binaries with a low mass stellar and a brown dwarf companion. In AIP Conference Proceedings (pp. 174-181).

MLA:

Schaffenroth, Veronika, et al. "Analysis of two eclipsing hot subdwarf binaries with a low mass stellar and a brown dwarf companion." Proceedings of the International Conference "Planetary Systems Beyond the Main Sequence" 2011. 174-181.

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