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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20140513T123000
DTEND;TZID=Atlantic/Canary:20140513T133000
UID:iactalks-640
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/640
CREATED:2014-05-13T12:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Compact Galaxies and Super Massive Black Holes
DESCRIPTION:Compact Galaxies and Super Massive Black Holes\nDr. Remco van d
 e Bosch\n\nMost massive galaxies have supermassive  black holes at their c
 entres, and the masses of the black holes  correlate with properties of th
 e host-galaxy bulge component. These  empirical scaling relations are impo
 rtant for distinguishing between  various theoretical models of galaxy evo
 lution, and they furthermore  form the basis for all black-hole mass measu
 rements at large distances.  Observations have shown that the mass of the 
 black hole is typically 0.1  per cent of the mass of the stellar bulge of 
 the galaxy. Our  spectroscopic survey with the Hobby-Eberly Telescope of 1
 000 nearby  galaxies revealed several compact lenticular galaxies with ext
 remely  high velocity dispersions. The first example is NGC1277, which is 
 a  small, Re=1kpc, compact, lenticular galaxy with a mass of 1.2×10^
 11  solar masses.  From the stellar kinematics we determined that the mass
   of the central black hole is 10^10 solar masses, more than 10 per cent  
 of its bulge mass. I will present HST images and IFU spectroscopy of a  do
 zen more compact galaxies that all appear to host extremely big black  hol
 es and have Salpeter-like IMFs. These local systems, with distances  less 
 than 100 Mpc, could be the passively evolved descendents of the  quiescent
  compact nugget galaxies found at z~2 and the >10e9 Msun  quasars that 
 are found at z>6.
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