Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.410k&link_type=abstract
Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:
Astronomy and Astrophysics
Astrophysics
Scientific paper
Periodic collisions of stars and stellar-mass compact objects with an accretion disc near a central massive black hole affect the long-term evolution of their orbital parameters in galactic cores, and, consequently, also the structure of the nuclear cluster within the distance of about 1 pc. This model is relevant especially for active galactic nuclei. Local effects of interaction with the disc material, as well as global effects of rotation of the central black hole and of the disc gravity have been discussed in the literature. In this contribution recent works dealing with this topic are summarized and an ongoing project is described in which we include star-star gravitational scattering into account.
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