The Open UniversitySkip to content
 

Nova-induced mass transfer variations

Kolb, U.; Rappaport, S.; Schenker, K. and Howell, S. (2001). Nova-induced mass transfer variations. Astrophysical Journal, 563(number 2, part 1) pp. 958–970.

URL: http://www.journals.uchicago.edu/ApJ/journal/issue...
DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1086/324074
Google Scholar: Look up in Google Scholar

Abstract

We investigate variations of the mass transfer rate in cataclysmic variables (CVs) that are induced by nova outbursts. The ejection of nova shells leads to a spread of transfer rates in systems with similar orbital period. The effect is maximal if the specific angular momentum in the shell is the same as the specific orbital angular momentum of the white dwarf. We show analytically that in this case the nova-induced widening of the mass transfer rate distribution can be significant if the system, in the absence of nova outbursts, is close to mass transfer instability (i.e., within a factor of 1.5 of the critical mass ratio). Hence, the effect is negligible below the period gap and for systems with high-mass white dwarfs. At orbital periods between about 3 and 6 hr the width of the mass transfer rate distribution exceeds an order of magnitude if the mass accreted on the white dwarf prior to the runaway is larger than a few 10-4 M. At a given orbital period in this range, systems with the highest transfer rate should on average have the largest ratio of donor to white dwarf mass. We show results of population synthesis models that confirm and augment the analytic results.

Item Type: Journal Article
ISSN: 1538-4357
Extra Information: Some of the symbols may not have transferred correctly into this bibliographic record and/or abstract.
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
eSTEeM
Item ID: 4291
Depositing User: Users 6827 not found.
Date Deposited: 05 Jul 2006
Last Modified: 05 Mar 2014 10:27
URI: http://oro.open.ac.uk/id/eprint/4291
Share this page:

Actions (login may be required)

View Item
Report issue / request change

Policies | Disclaimer

© The Open University   + 44 (0)870 333 4340   general-enquiries@open.ac.uk