BIB-VERSION:: AST-PP-v1.0
ID:: epreps.stsci//prep1203
ENTRY:: March 9, 1998
TITLE::  Relics of Nuclear Activity: Do All Galaxies Have Massive Black Holes?  
SUBTITLE:: 
AUTHOR:: Marel, Roeland P. van der
AFFIL:: Space Telescope Science Institute    3700 San Martin Drive    Baltimore, MD 21218    USA
DATE:: December 1997
JOURNAL:: To appear in: 
SUBMITTED::
ACCEPTED::
OTHER_ACCESS:: 
COPYRIGHT:: Copyright 1997 The Association of Universities for Research in Astronomy, Inc.  All Rights Reserved.
LANGUAGE:: English
ABSTRACT::

 The distribution of black hole (BH) masses
M<IMG SRC="/science/preprints/Icons/bullet.gif" WIDTH=7 HEIGHT=8 ALIGN=absbottom> in galaxies is 
constrained by photometric and kinematic studies of individual 
galaxies, and by the properties of the quasar population. I review our 
understanding of these topics, present new results of adiabatic BH 
growth models for HST photometry of elliptical galaxies with 
brightness profiles of the `core' type, and discuss the implications 
of ground-based stellar kinematical data. It is not yet possible to 
uniquely determine the BH mass distribution, but the available 
evidence is not inconsistent with a picture in which: (i) a majority 
of galaxies has BHs; (ii) there is a correlation (with large scatter) 
between \Mbh and spheroid luminosity 
L<FONT SIZE=-1><SUB>sph</SUB></FONT> of the form
M<IMG SRC="/science/preprints/Icons/bullet.gif" WIDTH=7 HEIGHT=8 ALIGN=absbottom>
<IMG SRC="/science/preprints/Icons/approx.gif" ALIGN=baseline WIDTH=12 HEIGHT=9>
10<FONT SIZE=-1><SUP>-2</SUP></FONT> 
L<FONT SIZE=-1><SUB>sph</SUB></FONT> (solar B-band units); and (iii) the 
BHs formed  in a quasar phase through mass accretion with efficiency 
<IMG SRC="/science/preprints/Icons/epsilon.gif" ALIGN=baseline WIDTH=6 HEIGHT=8> <IMG 
SRC="/science/preprints/Icons/approx.gif" ALIGN=baseline WIDTH=12 HEIGHT=9> 0.05. <P> 



END:: epreps.stsci//prep1203