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The Evolution of Low Mass Contact Binaries

Published online by Cambridge University Press:  23 April 2012

Kazimierz Stępień  and
Kosmas Gazeas
Kazimierz Stępień
Affiliation:
Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland email: [email protected]
Kosmas Gazeas
Affiliation:
Department of Astrophysics, Astronomy and Mechanics, Faculty of Physics, University of Athens, GR-157 84, Zografos, Athens, Greece European Space Agency, ESTEC, Mechatronics and Optics Division, Keplerlaan 1, 2200AG, Noordwijk, The Netherlands email: [email protected], [email protected]
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Abstract

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We discuss the origin and evolution of low mass contact binaries with Porb shorter than 0.3 d that have properties somewhat different from the rest of the contact binaries. A comparison of an evolutionary model set with observations shows that both components are on the main sequence, the age of the binaries is at least several Gyr, while the contact phase lasts only less than 1 Gyr.

Keywords

contact binariesW UMa starsstellar evolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S282: From Interacting Binaries to Exoplanets: Essential Modeling Tools , July 2011 , pp. 456 - 457
Copyright
Copyright © International Astronomical Union 2012

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