Subdwarf B Binaries as an Important Progenitor Channel for Cataclysmic Variables

Details Subdwarf B Binaries as an Important Progenitor Channel for Cataclysmic Variables Subdwarf B Binaries as an Important Progenitor Channel for Cataclysmic Variables

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..334..351s&link_type=abstract

14th European Workshop on White Dwarfs, ASP Conference Series, Vol. 334 Proceedings of a meeting held at Kiel, July 19-23, 2004

Astronomy and Astrophysics

Astronomy

3

Scientific paper

Current and upcoming studies of post-common-envelope binaries (PCEBs) and specifically sdB binaries reveal crucial properties of such populations. These suggest a radical change in our picture of cataclysmic variable (CV) formation and the tightly interconnected evolution of CVs. I present a modified CV formation picture involving multiple channels, where the observed period gap in CVs is created by a superposition of a short-period sdB channel and a longer-period post-thermal-timescale mass transfer channel rather than the conventional model of a single uniform formation channel and disrupted magnetic braking.

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