Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-06-09
Mon.Not.Roy.Astron.Soc.371:29-37,2006
Astronomy and Astrophysics
Astrophysics
definitive version is on MNRAS online early, 9 pages, 6 figures - here misleading text removed and typos corrected
Scientific paper
10.1111/j.1365-2966.2006.10660.x
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.
Blundell Katherine M.
Celotti Annalisa
Crawford Carolin S.
Erlund M. C.
Fabian Andrea C.
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