We present an ongoing study of 18 nearby galaxy groups, chosen for the availability of Chandra and/or XMM-Newton data and evidence for AGN/hot intragroup gas interaction. We have obtained 235 and 610 MHz observations at the GMRT for all the groups, and 327 and 150 MHz for a few. We discuss two interesting cases - NGC 5044 and AWM 4 - which exhibit different kinds of AGN/hot gas interaction. With the help of these examples we show how joining low-frequency radio data (to track the history of AGN outbursts through emission from aged electron populations) with X-ray data (to determine the state of hot gas, its disturbances, heating and cooling) can provide a unique insight into the nature of the feedback mechanism in galaxy groups.
@article{arxiv.0909.0291,
title = {AGN feedback in galaxy groups: a joint GMRT/X-ray study},
author = {S. Giacintucci and J. M. Vrtilek and E. O'Sullivan and S. Raychaudhury and L. P. David and T. Venturi and R. Athreya and M. Gitti},
journal= {arXiv preprint arXiv:0909.0291},
year = {2015}
}
Comments
4 pages, 2 figures, to appear in proceedings of the conference "The Monster's Fiery Breath: Feedback in Galaxies, Groups, and Clusters", June 2009, Madison Wisconsin