Dynamics of the radio galaxy 3C449

Abstract

We present ROSAT PSPC observations of the twin-jet radio galaxy 3C449. 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 3C449 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.

10 pages, 6 figures, uses mn.sty and epsf.sty. To appear in MNRAS

Cited by in corpus (37)

• An X-ray study of magnetic field strengths and particle content in FRII radio sources
• X-ray Emission from the Hot ISM and SW Radio Lobe of the Nearby Radio Galaxy Centaurus A
• An XMM-Newton study of the environments, particle content and impact of low-power radio galaxies
• ROSAT X-ray observations of 3CRR radio sources
• Chandra finds X-ray jets are common in low-power radio galaxies
• Obscuration and Origin of Nuclear X-ray emission in FR I Radio Galaxies
• X-ray emission from the nuclei, lobes and hot-gas environments of two FR-II radio galaxies
• A representative survey of the dynamics and energetics of FRII radio galaxies
• The environments of FRII radio sources
• X-ray-emitting Atmospheres of B2 Radio Galaxies
• X-ray observations of low-power radio galaxies from the B2 catalogue
• Mass entrainment and turbulence-driven acceleration of ultra-high energy cosmic rays in Centaurus A
• XMM-Newton observations of the hot-gas atmospheres of 3C 66B and 3C 449
• The particle content of low-power radio galaxies in groups and clusters
• Chandra and XMM-Newton Observations of NGC 6251
• Structure of the magnetoionic medium around the FR Class I radio galaxy 3C 449
• The discovery of a radio galaxy of at least 5 Mpc
• Recent Progress in Modeling the Macro- and Micro-Physics of Radio Jet Feedback in Galaxy Clusters
• The interaction between radio lobes and hot gas in the nearby radio galaxies 3C285 and 3C442A
• The nature of the ghost cavity in the NGC 741 group
• A divergence-cleaning scheme for cosmological SPMHD simulations
• VLA Radio Study of a Sample of Nearby X-ray and Optically Bright Early-Type Galaxies
• An X-ray view of WLRGs/LINERs
• Extranuclear X-ray Emission in the Edge-on Seyfert Galaxy NGC 2992
• Extended and compact X-ray emission from the powerful radio galaxy 3C220.1
• A multiband study of Hercules A. I. ROSAT observations of the intracluster medium
• Gas Sloshing and Radio Galaxy Dynamics in the Core of the 3C449 Group
• The dynamics and environmental impact of 3C452
• Searching for the inverse-Compton emission from bright cluster-centre radio galaxies
• The impact of a young radio galaxy: clues from the cosmic-ray electron population
• Bent Radio Jets Reveal a Stripped Interstellar Medium in NGC 1272
• An intergalactic medium temperature from a giant radio galaxy
• Extended X-ray emission from the BL Lac object PKS 0521-365
• A Multiwavelength Study of the Extreme AGN J2310-437
• The Warped Nuclear Disk of Radio Galaxy 3C 449
• The Gaseous Environments of Radio Galaxies
• Mapping the emission and spectral properties of the FRI radio galaxy 3C 449 with LOFAR and the VLA