Jet Speeds in Wide Angle Tailed Radio Galaxies
Abstract
We present a sample of 30 wide angle tailed radio galaxies (WATs) that we use to constrain the jet speeds in these sources. We measure the distribution of jet-sidedness ratios for the sample, and assuming that the jets are beamed, jet speeds in the range (0.3-0.7)c are obtained. Whilst the core prominence of the sample, which ought to be a reliable indicator of beaming, shows little correlation with the jet-sidedness, we argue that due to the peculiar nature of WATs core-prominence is unlikely to be a good indicator of beaming in these sources. We further show that if the jets are fast and light, then the galaxy speeds required to bend jets into C-shapes such as those seen in 0647+693 are reasonable for a galaxy in a merging or recently merged cluster.
Cite
@article{arxiv.astro-ph/0602162,
title = {Jet Speeds in Wide Angle Tailed Radio Galaxies},
author = {Nazirah N. Jetha and Martin J. Hardcastle and Irini Sakelliou and .},
journal= {arXiv preprint arXiv:astro-ph/0602162},
year = {2009}
}
Comments
10 pages, 18 figures, accepted for publication in MNRAS