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NGC 6251 at multiple scales and wavelengths
P. N. Werner, D. M. Worrall, M. Birkinshaw
We have studied the FR I radio galaxy NGC 6251 and its environment at several wavelengths and scale lengths. On the large scale, we have probed the gravity field by measuring the v…
The environments of FRII radio sources
M. J. Hardcastle, D. M. Worrall
Using ROSAT observations, we estimate gas pressures in the X-ray-emitting medium surrounding 63 FRII radio galaxies and quasars. We compare these pressures with the internal pressu…
The Infrared Jet In 3C66B
D. Tansley, M. Birkinshaw, M. J. Hardcastle +1
We present images of infrared emission from the radio jet in 3C66B. Data at three wavelengths (4.5, 6.75 and 14.5 microns) were obtained using the Infrared Space Observatory. The 6…
Chandra Discovery of a 100 kpc X-ray Jet in PKS 0637--752
D. A. Schwartz, H. L. Marshall, J. E. J. Lovell +18
The quasar PKS 0637-753, the first celestial X-ray target of the Chandra X-ray Observatory, has revealed asymmetric X-ray structure extending from 3 to 12 arcsec west of the quasar…
A spectroscopic study of NGC 6251 and its companion galaxies
P. N. Werner, D. M. Worrall, M. Birkinshaw
Measurements of the velocities of galaxies thought to be associated with the giant radio galaxy NGC 6251 confirm the presence of a poor cluster with a systemic redshift of z= 0.024…