Open AccessStellar capture by an accretion disc
Author(s) -
D. Vokrouhlický,
George Wallerstein
Publication year - 1998
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.1998.01213.x
Subject(s) - physics , astrophysics , astronomy , stellar evolution , orbit (dynamics) , young stellar object , accretion (finance) , quadrature (astronomy) , star formation , stars , optics , engineering , aerospace engineering
The long‐term evolution of a stellar orbit captured by a massive galactic centre via successive interactions with an accretion disc has been examined. An analytical solution describing the evolution of the stellar orbital parameters during the initial stage of the capture has been found. Our results are applicable to thin Keplerian discs with an arbitrary radial distribution of density and a rather general prescription for the star–disc interaction. Temporal evolution is given in the form of quadrature which can be carried out numerically.