Open AccessROSAT X‐ray observations of 3CRR radio sources
Author(s) -
Hardcastle M. J.,
Worrall D. M.
Publication year - 1999
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.1999.02945.x
Subject(s) - rosat , physics , astrophysics , quasar , radio galaxy , astronomy , luminosity , redshift , x shaped radio galaxy , galaxy , ovv quasar , galaxy cluster
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 spatial resolution of ROSAT over earlier missions allows a better separation of the nuclear and extended components of the X‐ray emission. We investigate the relationship between nuclear X‐ray and core radio luminosity, and show that our results support a model in which every radio galaxy and quasar has a beamed nuclear soft X‐ray component directly related to the radio core. We report evidence for rich cluster environments around several powerful quasars. These X‐ray environments are comparable to those of high‐redshift radio galaxies.