Dynamics of the radio galaxy 3C 449

M. J. Hardcastle*, D. M. Worrall, M. Birkinshaw

*Corresponding author for this work

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

38 Citations (Scopus)

Abstract

We present ROSAT PSPC observations of the twin-jet radio galaxy 3C 449. The soft X-ray emission from this object is dominated by an extended halo with a scale comparable to that of the radio source. The asymmetry of the X-ray emission is reflected in that of the radio lobes, providing evidence that the behaviour of the jets is strongly influenced by the external medium. A region of reduced X-ray surface brightness coincident with the southern radio lobe of 3C 449 suggests that the radio source has displaced thermal plasma from the X-ray-emitting halo. However, the minimum pressure in the radio lobe is considerably lower than our estimates of the pressure in the external medium. We discuss the implications for the dynamics of the radio source.

Original languageEnglish
Pages (from-to)1098-1104
Number of pages7
JournalMonthly Notices of the Royal Astronomical Society
Volume296
Issue number4
DOIs
Publication statusPublished - 1 Jun 1998

Keywords

  • Galaxies: active
  • Galaxies: individual: 3C 449
  • Galaxies: jets
  • X-rays: galaxies

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