Stellar capture by an accretion disc

Details Stellar capture by an accretion disc Stellar capture by an accretion disc

1997-10-15

arxiv.org/abs/astro-ph/9710169v1

Astronomy and Astrophysics

Astrophysics

Letter to MNRAS, 5 pages and 3 figures; also available at http://otokar.troja.mff.cuni.cz/user/karas/au_www/karas/papers.htm

Scientific paper

10.1046/j.1365-8711.1998.01213.x

Long-term evolution of a stellar orbit captured by a massive galactic center via successive interactions with an accretion disc has been examined. An analytical solution describing evolution of the stellar orbital parameters during the initial stage of the capture was found. Our results are applicable to thin Keplerian discs with an arbitrary radial distribution of density and rather general prescription for the star-disc interaction. Temporal evolution is given in the form of quadrature which can be carried out numerically.

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