Computer Science
Scientific paper
Jul 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001hst..prop.9045w&link_type=abstract
HST Proposal ID #9045
Computer Science
Hst Proposal Id #9045 Agn/Quasars
Scientific paper
We propose a large program aimed at determining the relationship between the properties of the host galaxies of radio-loud AGN and their radio luminosities. Previous studies in this area with the HST have concentrated on the 3C sample which shows a tight correlation between luminosity and redshift, such that evolutionary effects cannot be distinguished from those depending upon radio luminosity. Our sample of 46 radio galaxies at z ~ 0.5 comes from four complete, low-frequency-selected samples of radio sources with differing flux limits. Thus the total sample spans an unprecedented three orders of magnitude in radio luminosity at a fixed redshift interval. These observations will probe the relationship between the radio sources, their host galaxies and supermassive black holes. With 2D-modelling of the radio galaxies we will derive morphologies and scalelengths to determine if all radio-loud AGN reside in giant ellipticals and follow the Kormendy relation exhibited by low-redshift, radio-quiet ellipticals.
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