Galaxy gas ejection in radio galaxies: the case of 3C 35
  We report results from XMM-Newton and Chandra observations of the nearby (z =
0.067) giant radio galaxy 3C 35. We find evidence for an X-ray emitting gas
belt, orthogonal to and lying between the lobes of 3C 35, which we interpret as
fossil-group gas driven outwards by the expanding radio lobes. We also detect
weak emission from a second, more extended group-type environment, as well as
inverse-Compton X-ray emission from the radio lobes. The morphological
structure of the radio lobes and gas belt point to co-evolution. Furthermore,
the radio source is powerful enough to eject galaxy-scale gas out to distances
of 100kpc, and the ages of the two features are comparable (tsynch~140Myr,
tbelt~80 Myr). The destruction of 3C 35's atmosphere may offer clues as to how
fossil systems are regulated: radio galaxies need to be of power comparable to
3C 35 to displace and regulate fossil-group gas. We discuss the implications of
the gas belt in 3C 35 in terms of AGN fuelling and feedback.
