Statistics – Computation
Scientific paper
Dec 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.117..363k&link_type=abstract
Astrophysics and Space Science (ISSN 0004-604X), vol. 117, no. 2, Dec. 1985, p. 363-373.
Statistics
Computation
1
Black Holes (Astronomy), Computational Astrophysics, Friction, Galactic Nuclei, Star Clusters, Tides
Scientific paper
A numerical study has been made of the motion of a compact object consisting of a supermassive black hole with a dense cluster of stars around through a galaxy which has recoiled from the center of the latter as a result of anisotropic emission of gravitational radiation or asymmetrical plasma emission. The author finds that the effect of dynamical friction on its motion through the galaxy (mass ≅ 1011M_sun;) estimated using the impulsive approximation technique, is minimal for an object mass ≅109M_sun; and for recoil taking place at a velocity larger than that of escape. A velocity ≅1.1 times the escape velocity is needed for the object to escape from the galaxy, whereas for velocities of recoil less than this critical velocity, damped oscillatory motion ensures. The energy exchange of the object with the galaxy is not large enough to cause appreciable change in the internal energy of the latter.
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