43 citations · 163 across the 9 of their papers we have counts for
6 papers · 1 filter
Shock heating in the group atmosphere of the radio galaxy B2 0838+32A
Nazirah N. Jetha, Martin J. Hardcastle, Trevor J. Ponman +1
We present Chandra and radio observations, and analysis of Sloan Digital Sky Survey data, of the radio galaxy B2 0838+32A (4C 32.26) and its environment. The radio galaxy is at the…
The nature of the ghost cavity in the NGC 741 group
Nazirah N. Jetha, Martin J. Hardcastle, Arif Babul +4
We discuss the effects of energy injection into the intra-group medium of the group of galaxies associated with NGC 741. The X-ray emission reveals a large bubble, which in the abs…
3C 40 in Abell 194: can tail radio galaxies exist in a quiescent cluster?
I. Sakelliou, M. J. Hardcastle, N. N. Jetha
The nearby cluster Abell 194 hosts two luminous, distorted radio galaxies. Both reside within the cluster's core region, being separated in projection by only 100 kpc. It is often…
AGN heating in galaxy groups: A statistical study
N. N. Jetha, T. J. Ponman, M. J. Hardcastle +1
We present gas temperature, density, entropy and cooling time profiles for the cores of a sample of 15 galaxy groups observed with {\it Chandra}. We find that the entropy profiles…
Jet Speeds in Wide Angle Tailed Radio Galaxies
Nazirah N. Jetha, Martin J. Hardcastle, Irini Sakelliou +1
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…
Interactions of Radio Galaxies and the Intra-Cluster Medium in Abell 160 and Abell 2462
N. N. Jetha, I. Sakelliou, M. J. Hardcastle +2
We present Chandra and VLA observations of two galaxy clusters, Abell 160 and Abell 2462, whose brightest cluster galaxies (BCGs) host wide angle tailed radio galaxies (WATs). We s…