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

E. Mannering*, D. M. Worrall, M. Birkinshaw

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

7 Citations (Scopus)
269 Downloads (Pure)

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 100 kpc, and the ages of the two features are comparable (tsynch≈ 140 Myr, 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 active galactic nuclei fuelling and feedback.

Original languageEnglish
Pages (from-to)858-873
Number of pages16
JournalMonthly Notices of the Royal Astronomical Society
Volume431
Issue number1
Early online date26 Feb 2013
DOIs
Publication statusPublished - 1 May 2013

Bibliographical note

18 pages, accepted to MNRAS

Keywords

  • galaxies: active
  • galaxies: groups: general
  • radio continuum: galaxies
  • X-rays: galaxies
  • Active galactic nuclei
  • Compton x-rays
  • Spectroscopic survey
  • Magnetic-field strengths
  • XMM-Newton observations
  • Wind charge-exchange
  • Fossil groups
  • FR-I
  • Radiative efficiency
  • Elliptic galaxies

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