A ROSAT observation of the powerful distant radio galaxy 3C 356
Open Access
- 1 January 1993
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 260 (1) , L15-L19
- https://doi.org/10.1093/mnras/260.1.L15
Abstract
We present results obtained with the Position Sensitive Proportional Counter on ROSAT of the first X-ray detection of a powerful distant radio galaxy, 3C 356. The X-ray source has a luminosity of ~ 2.5 × 1044erg s–1, mostly from the region spanned by the radio lobes. The spectrum shows no evidence of strong intrinsic absorption. Such absorption is observed in the nuclei of nearby powerful radio galaxies, implying that the X-rays from 3C 356 are probably from a dense halo of hot gas, cooling at a rate of 500–1500M⊙ yr–1.Keywords
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