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Accretion Disks of Bounce-Back CVs

Published online by Cambridge University Press:  21 February 2013

Gagik Tovmassian  and
Sergey Zharikov
Gagik Tovmassian
Affiliation:
Instituto de Astronomia, UNAM, Ensenada, BC, Mexico email: [email protected], [email protected]
Sergey Zharikov
Affiliation:
Instituto de Astronomia, UNAM, Ensenada, BC, Mexico email: [email protected], [email protected]
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Abstract

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We explore conditions and structure of accretion disks in the short-period Cataclysmic Variables, which have evolved beyond the period minimum. We show that the accretion disk in a system with extreme mass ratio grows in the size reaching 2:1 resonance radius and are relatively cool. They also become largely optically thin in the continuum, contributing to the total flux less than the stellar components of the system. In contrast, the viscosity and the temperature in spiral arms formed at the outer edge of the disk are higher and their contribution in continuum plays an increasingly important role. We model such disks and generate light curves which successfully simulate the observed double-humped light curves in the quiescence.

Keywords

Cataclysmic variablesaccretion diskperiod minimum
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S290: Feeding Compact Objects: Accretion on All Scales , August 2012 , pp. 149 - 152
Copyright
Copyright © International Astronomical Union 2013

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