Intermediate Mass Black Holes in Globular Clusters - Comparison of Monte Carlo Cluster Models with Observations

Details Intermediate Mass Black Holes in Globular Clusters - Comparison of Monte Carlo Cluster Models with Observations Intermediate Mass Black Holes in Globular Clusters - Comparison of Monte Carlo Cluster Models with Observations

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21344213u&link_type=abstract

American Astronomical Society, AAS Meeting #213, #442.13; Bulletin of the American Astronomical Society, Vol. 41, p.321

Astronomy and Astrophysics

Astronomy

Scientific paper

Decades after first predicting Intermediate Mass Black Holes (IMBHs) in Globular Clusters (GCs) there is still no unambiguous observational evidence for their existence. The most promising signatures for IMBHs are found in the cores of GCs, where the evidence now comes from both the stellar velocity distribution and the surface brightness profile near the cluster center. However, interpretation of the data and, in particular, constraints on central IMBH masses, require the use of detailed cluster dynamical models.
Here we present results from simulations of GCs that harbor IMBHs. These simulations have been carried out with our Monte Carlo cluster code which now includes all relevant physical processes, including both stellar dynamics and stellar evolution, making direct and detailed comparisons with observations possible. We compare our predicted velocity and surface brightness profiles with observations and derive constraints on the masses of possible central IMBHs for several candidate GCs.
This work is supported by NASA through grant HST-AR-11779.01 from the Space Telescope Science Institute.

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