HST and VLA Observations of Nearby Low Luminosity Radio Sources
Stefi Baum
Space Telescope Science Institute
NRAO-CV Auditorium, Thursday March 9th
4:00pm
Nearby powerful radio galaxies provide unique probes of the
relationship between the central black hole, the host galaxy,
and the radio source. We describe recent results from a study
of a complete sample of 21 nearby FRI radio galaxies identified
with UGC galaxies. We present HST broad and narrow band images of
the host galaxies which reveal the properties of the gas and dust
disks in the central regions of the galaxies. We present VLBA
observations which reveal the prevelance of possibly relativistic
jets on the parsec to tens of parsec scales. These jets all
fade quickly (on scales of order 50 pc). This fading may be due
to some combination of adiabatic and synchrotron losses.
Association between the jet and host galaxy properties on the
tens to hundreds of parsecs scale are explored.
John Hibbard
Last modified: Wed Apr 19 15:05:29 EDT 2000