43 citations · 163 across the 9 of their papers we have counts for
9 papers
AGN activity and IGM heating in fossil cluster RX J1416.4+2315
H. Miraghaei, H. G. Khosroshahi, C. Sengupta +3
We study Active Galactic Nucleus (AGN) activity in the fossil galaxy cluster, RX J1416.4+2315. Radio observations were carried out using Giant Metrewave Radio Telescope (GMRT) at t…
IGM Heating in Fossil Galaxy Groups
H. Miraghaei, H. G. Khosroshahi, H. -R. Klöckner +3
We study intergalactic medium (IGM) heating in a sample of five fossil galaxy groups by using their radio properties at 610 MHz and 1.4 GHz. The power by radio jets introducing mec…
Fossil Galaxy Groups -- Ideal Laboratories for Studying the Effects of AGN Heating
Nazirah N. Jetha, Habib Khosroshahi, Somak Raychaudhury +2
We present the first of a sample of fossil galaxy groups with pre-existing Chandra and/or XMM-Newton X-ray observations and new or forthcoming low frequency GMRT data -- RXJ1416.4+…
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…