Search
Now showing items 1-10 of 10
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 ...
FR II radio galaxies with z<0.3 -- II. Beaming and unification
(1999)
In a previous paper we presented measurements of the properties of jets and cores in a large sample of FRII radio galaxies with z < 0.3. Here we test, by means of Monte Carlo simulations, the consistency of those data with ...
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 ...
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 ...
The complex radio spectrum of 3C130
(1999)
I present four-frequency radio observations of the wide-angle tail radio galaxy 3C130. By a technique of simulated observations, I assess the systematic errors in the data due to the varying uv plane coverage in the different ...
Jets, plumes and hotspots in the wide-angle tail source 3C 130
(1998)
I present 1.5- and 8.4-GHz observations with all configurations of the NRAO VLA of the wide-angle tail source 3C130. The source has a pair of relatively symmetrical, well- collimated inner jets, one of which terminates in ...
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 ...
FR II radio galaxies with z < 0.3 I. Properties of jets, cores and hotspots
(1998)
In previous papers we have discussed high-resolution observations of a large sample of powerful radio galaxies with z < 0.3. Jets are detected in up to 80 per cent of the sample, and radio cores in nearly all the objects; ...
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. ...
The jets in 3C 296
(1997)
We present observations made with the VLA at 1.5 and 8.4 GHz of the nearby FRI radio galaxy 3C296. The most recent models of FRI radio galaxies suggest that sub- stantial deceleration must take place in their jets, with ...