Anisotropic inverse Compton emission in the radio galaxy 3C 265

Abstract

We present the results from a Chandra observation of the powerful radio galaxy 3C 265. We detect X-ray emission from the nucleus, the radio hotspots and lobes. In particular, the lobe X-ray emission is well explained as anisotropic inverse Compton scattering of the nuclear photons by the relativistic electrons in the radio lobes; the comparison between radio synchrotron and IC emission yields a magnetic field strength a factor about 2 lower than that calculated under minimum energy conditions. The X-ray spectrum of the nucleus is consistent with that of a powerful, strongly absorbed quasar and the X-ray emission of the south-eastern hotspot can be successfully reproduced by a combination of synchro-self Compton and inverse Compton emission assuming a magnetic field slightly lower than equipartition.

arXiv comment5 pages, 6 figures, to be published as a Letter on Monthly Notices of the Royal Astronomical Society

References in corpus (12)

• The origins of X-ray emission from the hotspots of FRII radio sources
• Magnetic field strengths in the hotspots and lobes of three powerful FRII radio sources
• A survey of extended radio jets in AGN with Chandra and HST: First Results
• ISOCAM survey and dust models of 3CR radio galaxies and quasars
• A Chandra detection of diffuse hard X-ray emission associated with the lobes of the radio galaxy 3C 452
• Chandra discovery of extended non-thermal emission in 3C 207 and the spectrum of the relativistic electrons
• Anisotropic inverse Compton scattering in powerful radio galaxies: the case of 3C 295
• Anisotropic inverse Compton scattering from the trans-relativistic to the ultra-relativistic regime and application to the radio galaxies
• Inverse Compton X-rays from the radio galaxy 3C 219
• Detection of X-ray Emission from the Eastern Radio Lobe of PICTOR A
• SCUBA Observations of High Redshift Radio Galaxies
• Xray observations of high redshift radio galaxies

Cited by in corpus (16)

• An X-ray study of magnetic field strengths and particle content in FRII radio sources
• The X-ray Jets of Active Galaxies
• High redshift FRII radio galaxies: X-ray properties of the cores
• Large Scale Extragalactic Jets in the Chandra era I: data reduction and analysis
• A Chandra Snapshot Survey for 3C Radio Galaxies with redshifts between 0.3 and 0.5
• Radio Lobes of Pictor A: an X-ray spatially resolved Study
• Multiwavelength study of Cygnus A II. X-ray inverse-Compton emission from a relic counterjet and implications for jet duty-cycles
• Direct evidence of the receding `torus' around central nuclei of powerful radio sources
• SZ effect from radio-galaxy lobes: astrophysical and cosmological relevance
• The energetics of giant radio galaxy lobes from inverse Compton scattering observations
• Beyond Simple AGN Unification with Chandra-observed 3CRR Sources
• Extended X-ray emission from radio galaxy cocoons
• Offsets between X-ray and Radio Components in X-ray Jets: The AtlasX
• AGN feedback in the FR II galaxy 3C 220.1
• Superdisks in Radio Galaxies: Jet-Wind Interactions
• The X-ray emission of the most luminous 3CR radio sources