X-ray observations of low-power radio galaxies from the B2 catalogue

C.M. Canosa, D.M. Worrall, M.J. Hardcastle, M. Birkinshaw

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Abstract

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 spatial resolution provided by this instrument. A variety of models are fitted to radial profiles in order to separate the resolved and unresolved X-ray emission from the galaxies. We demonstrate a strong, approximately linear, correlation between the luminosities of the unresolved X-ray components and the 5-GHz luminosities of the radio cores in this sample. This suggests a physical relationship between the soft X-ray emission of radio galaxies and the jet- generated radio core emission. We infer a nuclear jet-related origin for at least some of the X-ray emission.
Original languageEnglish
Pages (from-to)30-38
JournalMonthly Notices of the Royal Astronomical Society
Volume310
Issue number1
DOIs
Publication statusPublished - 1999

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