Dynamical Friction on Galactic Center Star Clusters with a Central Intermediate-Mass Black Hole

Details Dynamical Friction on Galactic Center Star Clusters with a Central Intermediate-Mass Black Hole Dynamical Friction on Galactic Center Star Clusters with a Central Intermediate-Mass Black Hole

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..322..475k&link_type=abstract

The Formation and Evolution of Massive Young Star Clusters, ASP Conference Series, Vol. 322. Edited by H.J.G.L.M. Lamers, L.J.

Astronomy and Astrophysics

Astronomy

Scientific paper

Numerical simulations of the dynamical friction suffered by a Galactic center star cluster harboring an intermediate-mass black hole (IMBH) have been performed. Hansen & Milosavljević recently suggested that the presence of an IMBH in the cluster core might stabilize the core against tidal disruption during the inspiral through dynamical friction, and thus might easily deliver young stars down to the central parsec. We find that the presence of an IMBH does lower the minimum initial core density required to transport young stars down to the central parsec, but this is possible only when the mass of the IMBH is at least ˜ 10 % of the total cluster mass.

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