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Astrophysics > Cosmology and Nongalactic Astrophysics

arXiv:1302.1585 (astro-ph)
[Submitted on 6 Feb 2013]

Title:Galaxy gas ejection in radio galaxies: the case of 3C 35

Authors:Elizabeth J.A. Mannering, Diana M. Worrall, Mark Birkinshaw
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Abstract: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.
Comments: 18 pages, accepted to MNRAS
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Cite as: arXiv:1302.1585 [astro-ph.CO]
  (or arXiv:1302.1585v1 [astro-ph.CO] for this version)
  https://doi.org/10.48550/arXiv.1302.1585
Related DOI: https://doi.org/10.1093/mnras/stt215

Submission history

From: Elizabeth Mannering [view email]
[v1] Wed, 6 Feb 2013 21:00:19 UTC (2,504 KB)
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