Black holes and central surface brightness cusps

Details Black holes and central surface brightness cusps Black holes and central surface brightness cusps

1998-11-02

arxiv.org/abs/astro-ph/9811025v1

Astronomy and Astrophysics

Astrophysics

4 pages, LaTeX, with 3 PostScript figures. Contributed paper to `Galaxy Dynamics', ASP Conference Series, 1999

Scientific paper

HST observations show that the surface brightness profiles of early-type galaxies have central cusps. I summarize here the results of van der Marel (1999), which show that the observed characteristics of these cusps are consistent with the hypothesis that all early-type galaxies have central black holes (BHs) that grew adiabatically in homogeneous isothermal cores. The models suggest a roughly linear correlation between BH mass and V-band galaxy luminosity, log M_BH = -1.83 + log L in solar units, similar to the relation suggested by kinematical BH detections in nearby galaxies.

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