Spiral waves in accretion discs

Details Spiral waves in accretion discs Spiral waves in accretion discs

2001-10-09

arxiv.org/abs/astro-ph/0110197v1

Astronomy and Astrophysics

Astrophysics

10 pages, 5 figures. To be published in "The Physics of Cataclysmic Variables and Related Objects", ASP Conf. Ser., eds. B. T.

Scientific paper

In the first part of this article, we review the observational evidence for spirals in the accretion discs of cataclysmic variables. It is shown that with the increasing amount of data available, spirals appear to be an omnipresent feature of accretion discs in outburst. Spirals seem to live until decline that is, for several tens of orbital periods. We then study the formation of spiral shocks from a theoretical side, using the results of various numerical simulations. We make a comparison between observations and theory and briefly discuss the implications of the presence of spirals in the discs of cataclysmic variables.

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