Search
Now showing items 61-68 of 68
The infrared jet in 3C 66B
(2000)
Radio, optical and X-ray nuclei in nearby 3CRR radio galaxies
(2000)
HST observations have shown that low-redshift 3CR radio galaxies often exhibit a point-like optical component positionally coincident with the GHz-frequency radio core. In this paper we discuss the correlation between the ...
The environments of FRII radio sources
(2000)
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 pressures of the radio-emitting plasma estimated ...
X-ray observations of low-power radio galaxies from the B2 catalogue
(1999)
We present an analysis of X-ray data, taken with ROSAT, for a well defined sample of low-power radio galaxies from the Bologna B2 catalogue. Where possible, the HRI has been used in order to take advantage of the higher ...
Extended X-ray emission from the BL Lac object PKS 0521-365
(1999)
Models that seek to unify BL Lacs and low-power radio galaxies predict that the two types of object should show similar isotropically emitted X-ray emission. Testing this is usually limited by difficulties in separating ...
ROSAT X-ray observations of 3CRR radio sources
(1999)
Over half the 3CRR sample of radio galaxies and quasars has been observed in X-rays with ROSAT pointed observations, and we present results from these observations, discussing many of the sources in detail. The improved ...
Dynamics of the radio galaxy 3C 449
(1998)
We present ROSAT PSPC observations of the twin-jet radio galaxy 3C449. The soft X- ray emission from this object is dominated by an extended halo with a scale comparable to that of the radio source. The asymmetry of the ...
Magnetic field strengths in the hotspots of 3C 33 and 111..
(1998)
We report on ROSAT HRI observations of the nearby powerful radio galaxies 3C33 and 3C111, which both have detected optical hot spots. We find nuclear X-ray sources in both objects, but no X-ray emission from the hot spots. ...