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arXiv · astro-ph/0606238

Extended inverse-Compton emission from distant, powerful radio galaxies

M. C. Erlund·A. C. Fabian·Katherine M. Blundell·A. Celotti·C. S. Crawford
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Abstract

We present Chandra observations of two relatively high redshift FRII radio galaxies, 3C 432 and 3C 191 (z=1.785 and z=1.956 respectively), both of which show extended X-ray emission along the axis of the radio jet or lobe. This X-ray emission is most likely to be due to inverse-Compton scattering of Cosmic Microwave Background (CMB) photons. Under this assumption we estimate the minimum energy contained in the particles responsible. This can be extrapolated to determine a rough estimate of the total energy. We also present new, deep radio observations of 3C 294, which confirm some association between radio and X-ray emission along the NE-SW radio axis and also that radio emission is not detected over the rest of the extent of the diffuse X-ray emission. This, together with the offset between the peaks of the X-ray and radio emissions may indicate that the jet axis in this source is precessing.

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M. C. Erlund, A. C. Fabian, Katherine M. Blundell, A. Celotti, C. S. Crawford. 2006-08-09. Extended inverse-Compton emission from distant, powerful radio galaxies. https://doi.org/10.1111/j.1365-2966.2006.10660.x

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