Stream/disc interactions in tidally unstable CVs

Details Stream/disc interactions in tidally unstable CVs Stream/disc interactions in tidally unstable CVs

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..330..213t&link_type=abstract

The Astrophysics of Cataclysmic Variables and Related Objects, Proceedings of ASP Conference Vol. 330. Edited by J.-M. Hameury a

Astronomy and Astrophysics

Astrophysics

Scientific paper

Current theoretical arguments predict that an increase in the mass transfer rate from the donor star in a tidally unstable cataclysmic variable leads to circularization of the outer disc orbits and suppresses the appearance of superhumps. However, observations of the stream-impact region during the 2001 outburst of WZ Sagittae suggest that the mass transfer rate increased dramatically with no adverse effect on the superhumps. I discuss the two sides of this apparent contradiction and introduce some results from high-resolution hydrodynamic simulations of the interaction of an accretion stream with a disc.

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