A Parkes half-Jansky sample of GPS galaxies
arXiv:astro-ph/0208368 · doi:10.1046/j.1365-8711.2002.05978.x
Abstract
This paper describes the selection of a new southern/equatorial sample of Gigahertz Peaked Spectrum (GPS) radio galaxies, and subsequent optical CCD imaging and spectroscopic observations using the ESO 3.6m telescope. The sample consists of 49 sources with -40<δ<+15 degrees, |b|>20 degrees, and S(2.7GHz)>0.5 Jy, selected from the Parkes PKSCAT90 survey. About 80% of the sources are optically identified, and about half of the identifications have available redshifts. The R-band Hubble diagram and evolution of the host galaxies of GPS sources are reviewed.
Latex, 12 pages, 8 figures, accepted for publication in MNRAS