We present Chandra observations of two relatively high redshift FR II radio galaxies, 3C 432 and 3C 191 (z = 1.785 and 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 north-east-south-west 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.
|Titolo:||Extended inverse-Compton emission from distant, powerful radio galaxies|
|Autori:||Erlund, M. C.; Fabian, A. C.; Blundell, K. M.; Celotti, A.; Crawford, C. S.|
|Data di pubblicazione:||2006|
|Digital Object Identifier (DOI):||10.1111/j.1365-2966.2006.10660.x|
|Appare nelle tipologie:||1.1 Journal article|