3C 129 at 90cm: Evidence for a Radio Relic?
Astrophysics
2009-11-07 v1
Abstract
We present a new wide-field map of the radio galaxy 3C 129 and its companion galaxy 3C 129.1 at lambda=90 cm. We see a distinct steep-spectrum feature near the head of 3C 129, extending in a direction perpendicular to the radio tails. We propose that this Crosspiece might consist of fossil radio plasma, which has been re-energized by the compression of the bow shock of the supersonically moving galaxy 3C 129. One possible origin of the fossil radio plasma could be the tail of a nearby head-tail radio galaxy. We discuss the implications of, and give testable predictions for this scenario.
Cite
@article{arxiv.astro-ph/0202255,
title = {3C 129 at 90cm: Evidence for a Radio Relic?},
author = {W. M. Lane and N. E. Kassim and T. A. Ensslin and D. E. Harris and R. A. Perley},
journal= {arXiv preprint arXiv:astro-ph/0202255},
year = {2009}
}
Comments
8 pages, 2 figures, accepted for publication in AJ