Browsing Research publications by Author "Burke, M.J."

Now showing items 1-3 of 3

    • The fading of two transient ultraluminous x-ray sources to below the stellar mass Eddington limit 

      Burke, M.J.; Kraft, R.P.; Soria, R.; Maccarone, T. J.; Raychaudhury, S.; Sivakoff, G.R.; Birkinshaw, M.; Brassington, Nicola; Forman, W.R.; Hardcastle, M.J.; Jones, C.; Murray, S.S.; Worrall, D.M. (2013-09-20)
      We report new detections of the two transient ultraluminous X-ray sources (ULXs) in NGC 5128 from an ongoing series of Chandra observations. Both sources have previously been observed L (2-3) × ∼10 erg s, at the lower end ...

    • Spectral properties of X-ray binaries in Centaurus A 

      Burke, M.J.; Raychaudhury, S.; Kraft, R.P.; Forman, W.R.; Jones, C.; Murray, S.S.; Birkinshaw, M.; Evans, D.A.; Jordán, A.; Worrall, D.M.; Maccarone, T. J.; Croston, J.H.; Brassington, Nicola; Hardcastle, M.J.; Goodger, J.L.; Kainulainen, J.; Woodley, K.A.; Sivakoff, G.R.; Gilfanov, M.; Zhang, Z.; Sarazin, C.L.; Voss, R. (2013-04-01)
      We present a spectral investigation of X-ray binaries (XBs) in NGC 5128 (Cen A), using six 100 ks Chandra observations taken over two months in 2007. We divide our sample into thermally and non-thermally dominated states ...

    • A transient sub-Eddington black hole X-ray binary candidate in the dust lanes of Centaurus A 

      Burke, M.J.; Raychaudhury, S.; Kraft, R.P.; Forman, W.R.; Jones, C.; Murray, S.S.; Evans, D.A.; Jordán, A.; Brassington, Nicola; Hardcastle, M.J.; Goodger, J.L.; Sivakoff, G.R.; Woodley, K.A.; Kainulainen, J.; Birkinshaw, M.; Worrall, D.M.; Croston, J.H.; Gilfanov, M.; Zhang, Z.; Sarazin, C.L.; Voss, R. (2012-04-20)
      We report the discovery of a bright X-ray transient CXOU J132527.6-430023 in the nearby early-type galaxy NGC5128. The source was first detected over the course of five Chandra observations in 2007, reaching an unabsorbed ...