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A New Evolutionary Picture for CVs and LMXBs

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journal contribution
posted on 21.10.2019, 14:27 by A. R. King, K. Schenker
We consider an alternative to the standard picture of CV and LMXB evolution, namely the idea that most CVs (and by extension LMXBs) may not yet have had time to evolve to their theoretical minimum orbital periods. We call this the Binary Age Postulate (BAP). The observed short-period cutoff in the CV histogram emerges naturally as the shortest period yet reached in the age of the Galaxy, while the post-minimum-period space density problem is removed. The idea has similar desirable consequences for LMXBs. In both cases systems with nuclear-evolved secondary stars form a prominent part of the short-period distributions. Properties such as the existence and nature of ultrashort-period systems, and the spread in mass transfer rates at a given orbital period, are naturally reproduced.

Funding

Theoretical astrophysics research at Leicester is supported by a PPARC rolling grant.

History

Citation

The Physics of Cataclysmic Variables and Related Objects, ASP Conference Proceedings, 2002, Vol. 261, pg. 233

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Physics and Astronomy

Source

'The Physics of Cataclysmic Variables and Related Objects', Goettingen,

Version

AM (Accepted Manuscript)

Published in

The Physics of Cataclysmic Variables and Related Objects

Publisher

Astronomical Society of the Pacific (ASP)

Copyright date

2002

Available date

21/10/2019

Publisher version

http://www.aspbooks.org/a/volumes/article_details/?paper_id=24510

Temporal coverage: start date

05/08/2001

Temporal coverage: end date

10/08/2001

Language

en

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