NGC 741 - Mergers and AGN feedback on galaxy group scale
  Low mass galaxy cluster systems and groups play an essential role in upcoming
cosmological studies such as those to be carried out with eROSITA. Though the
effects of active galactic nuclei (AGNs) and merging processes are of special
importance to quantify biases like selection effects or deviations from
hydrostatic equilibrium, they are poorly understood on the galaxy group scale.
We present an analysis of recent deep Chandra and XMM-Newton integrations of
NGC741, which provides an excellent example of a group with multiple concurrent
phenomena: both an old central radio galaxy and a spectacular infalling
head-tail source, strongly-bent jets, a 100kpc radio trail, intriguing narrow
X-ray filaments, and gas sloshing features. Supported principally by X-ray and
radio continuum data, we address the merging history of the group, the nature
of the X-ray filaments, the extent of gas stripping from NGC742, the character
of cavities in the group, and the roles of the central AGN and infalling galaxy
in heating the intra-group medium.
