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Browsing by Author "Worrall, D.M."
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An active galactic nucleus driven shock in the intracluster medium around the radio galaxy 3C310
Kraft, R.P.; Nulsen, P.E.J.; Forman, W.R.; Jones, C.; Murray, S.S.; Birkinshaw, M.; Worrall, D.M.; Croston, J.H.; Hardcastle, M.J. (2012-04-10)We present results from a 57.6 ks Chandra observation of the cluster gas associated with the fat-double radio galaxy 3C 310. We find a surface brightness discontinuity in the gas outside the southern radio lobe that we ... -
Cen A and its Interaction with the X-ray Emitting Interstellar Medium
Worrall, D.M.; Kraft, R.P.; Birkinshaw, M.; Hardcastle, M.J.; Forman, W.R.; Jones, C.; Murray, S.S. (2004)As the closest radio galaxy, Centaurus A is a powerful laboratory for the X-ray study of radio-emitting structures and their interactions with the hot interstellar medium (ISM). This paper details our interpretation of the ... -
Chandra and XMM-Newton observations of NGC 6251
Evans, D.A.; Hardcastle, M.J.; Croston, J.H.; Worrall, D.M.; Birkinshaw, M. (2005) -
Chandra and XMM-Newton Observations of the Nucleus of Centaurus A
Evans, D.A.; Kraft, R.P.; Worrall, D.M.; Hardcastle, M.J.; Jones, C.; Forman, W.R.; Murray, S.S. (2004-09)We present X-ray spectra of the nucleus of the nearby radio galaxy Centaurus A from observations with the XMM-Newton EPIC CCD cameras (two exposures separated by 12 months) and the Chandra HETGS. For the first time in an ... -
A Chandra and XMM-Newton study of the wide-angle tail radio galaxy 3c 465
Hardcastle, M.J.; Sakelliou, I.; Worrall, D.M. (2005-05) -
A Chandra detection of the radio hotspot of 3C 123
Hardcastle, M.J.; Birkinshaw, M.; Worrall, D.M. (2001-05) -
Chandra finds that X-ray jets are common in low-power radio galaxies
Worrall, D.M.; Birkinshaw, M.; Hardcastle, M.J. (2001-09) -
Chandra measurements of the X-ray core and cluster of 3C 220.1
Worrall, D.M.; Birkinshaw, M.; Hardcastle, M.J.; Lawrence, C.R. (2001-09) -
A Chandra observation of the X-ray environment and jet of 3c 296
Hardcastle, M.J.; Worrall, D.M.; Birkinshaw, M.; Laing, R.A.; Bridle, A.H. (2005-04) -
A Chandra observation of the X-ray environment and jet of 3C 31
Hardcastle, M.J.; Worrall, D.M.; Birkinshaw, M.; Laing, R.A.; Bridle, A.H. (2002-07)We have used a deep Chandra observation of the central regions of the twin-jet FRI radio galaxy 3C 31 to resolve the thermal X-ray emission in the central few kiloparsecs of the host galaxy, NGC 383, where the jets are ... -
Chandra observations of the X-ray jet in 3C 66B
Hardcastle, M.J.; Birkinshaw, M.; Worrall, D.M. (2001-10)Our Chandra observation of the FRI radio galaxy 3C66B has resulted in the first detection of an X-ray counterpart to the previously known radio, infra-red and optical jet. The X-ray jet is detected up to 7 arcsec from the ... -
Chandra Observations of the X-Ray Jet in Centaurus A
Kraft, R.P.; Forman, W.R.; Jones, C.; Murray, S.S.; Hardcastle, M.J.; Worrall, D.M. (2002-04)We present high angular resolution X-ray images and spectra from two Chandra AXAF CCD Imaging Spectrometer (ACIS-I) observations of the X-ray jet in the nearby radio galaxy Cen A. We find that the X-ray emission from the ... -
A Chandra Study of the Multicomponent X-Ray Emission from the X-shaped Radio Galaxy 3C403
Kraft, R.P.; Hardcastle, M.J.; Worrall, D.M.; Murray, S.S. (2005-03) -
Dynamics of the radio galaxy 3C 449
Hardcastle, M.J.; Worrall, D.M.; Birkinshaw, M. (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 ... -
The effect of a Chandra-measured merger-related gas component on the lobes of a dead radio galaxy
Worrall, D.M.; Birkinshaw, M.; Kraft, R.P.; Hardcastle, M.J. (2007) -
The environments of FR II radio sources
Hardcastle, M.J.; Worrall, D.M. (Astronomical Society of the Pacific, 2001)Using ROSAT observations, we estimate gas pressures in the X-ray-emitting media surrounding 63 FR II radio galaxies and quasars. We compare these pressures with the internal pressures of the radio-emitting plasma estimated ... -
The environments of FRII radio sources
Hardcastle, M.J.; Worrall, D.M. (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 ... -
Equipartition in the hot-spots of 3C 123
Hardcastle, M.J.; Birkinshaw, M.; Worrall, D.M. (Astronomical Society of the Pacific, 2001)Chandra X-ray Observatory observations of the powerful, peculiar radio galaxy 3C 123 have resulted in an X-ray detection of the bright eastern hot-spot, with a 1-ke V flux density of ~5 nJy. The X-ray flux and spectrum of ... -
Evidence for Non-Hydrostatic Gas Motions in the Hot Interstellar Medium of Centaurus A
Kraft, R.P.; Hardcastle, M.J.; Sivakoff, G.R.; Jordan, A.; Nulsen, P.E.J.; Birkinshaw, M.; Forman, W.R.; Jones, C.; Worrall, D.M.; Croston, J.H.; Evans, D.A.; Raychaudhury, S.; Murray, S.S.; Brassington, Nicola; Goodger, Joanna; Harris, W.E.; Juett, A.M.; Sarazin, C.L.; Woodley, K.A. (2008)We present preliminary results from a deep (600 ks) Chandra observation of the hot interstellar medium of the nearby early-type galaxy Centaurus A. We find a surface brightness discontinuity in the gas ~3.5 kpc from the ... -
Extended X-ray emission from the BL Lac object PKS 0521-365
Hardcastle, M.J.; Worrall, D.M.; Birkinshaw, M. (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 ...