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

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

doi:10.1046/j.1365-8711.1999.02923.x

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 language	English
Pages (from-to)	30-38
Journal	Monthly Notices of the Royal Astronomical Society (MNRAS)
Volume	310
Issue number	1
DOIs	https://doi.org/10.1046/j.1365-8711.1999.02923.x
Publication status	Published - 1999

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title = "X-ray observations of low-power radio galaxies from the B2 catalogue",

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.",

author = "C.M. Canosa and D.M. Worrall and M.J. Hardcastle and M. Birkinshaw",

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T1 - X-ray observations of low-power radio galaxies from the B2 catalogue

AU - Canosa, C.M.

AU - Worrall, D.M.

AU - Hardcastle, M.J.

AU - Birkinshaw, M.

N1 - The definitive version is available at www.blackwell-synergy.com. Copyright Blackwell Publishing DOI : 10.1046/j.1365-8711.1999.02923.x

PY - 1999

Y1 - 1999

N2 - 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.

AB - 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.

U2 - 10.1046/j.1365-8711.1999.02923.x

DO - 10.1046/j.1365-8711.1999.02923.x

M3 - Article

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JO - Monthly Notices of the Royal Astronomical Society (MNRAS)

JF - Monthly Notices of the Royal Astronomical Society (MNRAS)

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ER -

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

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