A Parkes half-Jansky sample of GPS galaxies
Astrophysics
2009-11-07 v1
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<\delta<+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.
Cite
@article{arxiv.astro-ph/0208368,
title = {A Parkes half-Jansky sample of GPS galaxies},
author = {I. A. G. Snellen and M. D. Lehnert and M. N. Bremer and R. T. Schilizzi},
journal= {arXiv preprint arXiv:astro-ph/0208368},
year = {2009}
}
Comments
Latex, 12 pages, 8 figures, accepted for publication in MNRAS