The Open UniversitySkip to content

The Minimum period problem in CVs

Barker, J. and Kolb, U. (2006). The Minimum period problem in CVs. In: ASP Conference Proceedings: The Physics of Cataclysmic Variables and Related Objects, San Francisco: Astronomical Society of the Pacific.

Google Scholar: Look up in Google Scholar


We investigate if consequential angular momentum losses (CAML) or an intrinsic deformation of the donor star in CVs could increase the CV bounce period from the canonical theoretical value ~65 min to the observed value $P_{min} \approx77$ min, and if a variation of these effects in a CV population could wash out the theoretically predicted accumulation of systems near the minimum period (the period spike). We are able to construct suitably mixed CV model populations that a statisticial test cannot rule out as the parent population of the observed CV sample. However, the goodness of fit is never convincing, and always slightly worse than for a simple, flat period distribution. Generally, the goodness of fit is much improved if all CVs are assumed to form at long orbital periods. The weighting suggested by King, Schenker & Hameury (2002) does not constitute an improvment if a realistically shaped input period distribution is used.

Item Type: Conference Item
Extra Information: The Physics of Cataclysmic Variables and Related Objects, ASP Conference Proceedings, Vol. 261. Edited by B. T. Gänsicke, K. Beuermann, and K. Reinsch. ISBN: 1-58381-101-X. San Francisco: Astronomical Society of the Pacific, 2002, p. 271.
--Some of the symbols may not have transferred correctly into this bibliographic record and/or abstract.
Keywords: binaries; stars; evolution; mass-loss; novae; cataclysmic variables
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 4683
Depositing User: Users 6041 not found.
Date Deposited: 22 Dec 2006
Last Modified: 14 Jan 2016 16:05
Share this page:

▼ Automated document suggestions from open access sources

Actions (login may be required)

Policies | Disclaimer

© The Open University   + 44 (0)870 333 4340