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arXiv · 0901.1286

Extended X-ray emission in radio galaxies: the peculiar case of 3C 305

F. Massaro·M. Chiaberge·P. Grandi·G. Giovannini·C. P. O'Dea·F. D. Macchetto·S. A. Baum·R. Gilli·A. Capetti·A. Bonafede·E. Liuzzo
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Abstract

Extended X-ray structures are common in Active Galactic Nuclei (AGNs). Here we present the first case of a Compact Steep Spectrum (CSS) radio galaxy, 3C 305, in which the X-ray radiation appears to be associated with the optical emission line region, dominated by the [O III]5007. On the basis of a morphological study, performed using the comparison between the X-rays, the optical and the radio band, we argue that the high energy emission has a thermal nature and it is not directly linked to the radio jet and hotspots of this source. Finally, we discuss the origin of the extended X-ray structure connected with the optical emission line region following two different interpretations: as due to the interaction between matter outflows and shock-heated environment gas, or as due to gas photoionized by nuclear emission.

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F. Massaro, M. Chiaberge, P. Grandi, G. Giovannini, C. P. O'Dea, F. D. Macchetto, S. A. Baum, R. Gilli, A. Capetti, A. Bonafede, E. Liuzzo. 2009-01-14. Extended X-ray emission in radio galaxies: the peculiar case of 3C 305. https://doi.org/10.1088/0004-637x%2F692%2F2%2Fl123

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