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Browsing by Author "Juett, A.M."
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Comparing GC and Field LMXBs in elliptical galaxies with Deep Chandra and Hubble Data
Kim, D.-W.; Fabbiano, G.; Brassington, Nicola; Fragos, T.; Kalogera, V.; Zezas, A.; Jordán, A.; Sivakoff, G.R.; Kundu, A.; Zepf, S.E.; Angelini, L.; Davies, R. L.; Gallagher, J.S.; Juett, A.M.; King, A.R.; Pellegrini, S.; Sarazin, C.L.; Trinchieri, G. (2009-09-01)We present a statistical study of the low-mass X-ray binary (LMXB) populations of three nearby, old elliptical galaxies: NGC 3379, NGC 4278, and NGC 4697. With a cumulative ~1 Ms Chandra ACIS observing time, we detect ... -
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 ... -
High-energy particle acceleration at the radio-lobe shock of Centaurus A
Croston, J.H.; Kraft, R.P.; Hardcastle, M.J.; Birkinshaw, M.; Worrall, D.M.; Nulsen, P.E.J.; Penna, R.F.; Sivakoff, G.R.; Jordan, R.; Brassington, Nicola; Evans, D.A.; Forman, W.R.; Gilfanov, M.; Goodger, Joanna; Harris, W.E.; Jones, C.; Juett, A.M.; Murray, S.S.; Raychaudhury, S.; Sarazin, C.L.; Voss, R.; Woodley, K.A. (2009)We present new results on the shock around the south-west radio lobe of Centaurus A using data from the Chandra Very Large Programme observations (740 ks total observing time). The X-ray spectrum of the emission around the ... -
Low-Mass X-ray Binaries and Globular Clusters in Centaurus A
Jordan, A.; Sivakoff, G.R.; McLaughlin, D.E.; Blakeslee, J.P.; Evans, D.A.; Kraft, R.P.; Hardcastle, M.J.; Peng, E.W.; Cote, P.; Croston, J.H.; Juett, A.M.; Minniti, D.; Raychaudhury, S.; Sarazin, C.L.; Worrall, S.M.; Harris, W.E.; Woodley, K.A.; Birkinshaw, M.; Brassington, Nicola; Forman, W.R.; Jones, C.; Murray, S.S. (2007)We present results of Hubble Space Telescope and Chandra X-Ray Observatory observations of globular clusters (GCs) and low-mass X-ray binaries (LMXBs) in the central regions of Centaurus A. Out of 440 GC candidates, we ... -
Luminosity functions of LMXBs in Centaurus A: globular clusters versus the field
Voss, R.; Gilfanov, M.; Sivakoff, G.R.; Kraft, R.P.; Jordan, A.; Raychaudhury, S.; Birkinshaw, M.; Brassington, Nicola; Croston, J.H.; Evans, D.A.; Forman, W.R.; Hardcastle, M.J.; Harris, W.E.; Jones, C.; Juett, A.M.; Murray, S.S.; Sarazin, C.L.; Woodley, K.A.; Worrall, D.M. (2009)We study the X-ray luminosity function (XLF) of low-mass X-ray binaries (LMXB) in the nearby early-type galaxy Centaurus A, concentrating primarily on two aspects of binary populations: the XLF behavior at the low-luminosity ... -
New results on particle acceleration in the Centaurus A jet and counterjet from a deep Chandra observation
Hardcastle, M.J.; Kraft, R.P.; Sivakoff, G.R.; Goodger, Joanna; Croston, J.H.; Jordan, A.; Evans, D.A.; Worrall, D.M.; Birkinshaw, M.; Raychaudhury, S.; Brassington, Nicola; Forman, W.R.; Harris, W.E.; Jones, C.; Juett, A.M.; Murray, S.S.; Nulsen, P.E.J.; Sarazin, C.L.; Woodley, K.A. (2007)We present new deep Chandra observations of the Centaurus A jet, with a combined on-source exposure time of 719 ks. These data allow detailed X-ray spectral measurements to be made along the jet out to its disappearance ... -
A Transient Black-Hole Low-Mass X-Ray Binary Candidate in Centaurus A
Sivakoff, G.R.; Kraft, R.P.; Jordan, A.; Juett, A.M.; Evans, D.A.; Forman, W.R.; Hardcastle, M.J.; Sarazin, C.L.; Birkinshaw, M.; Brassington, Nicola; Croston, J.H.; Harris, W.F.; Jones, C.; Murray, S.S.; Raychaudhury, S.; Woodley, K.A.; Worrall, D.M. (2008)We report the discovery of a bright transient X-ray source, CXOU J132518.2–430304, toward Centaurus A (Cen A) using six new Chandra X-Ray Observatory observations in 2007 March-May. Between 2003 and 2007, its flux has ... -
Where Centaurus A gets its X-ray knottiness
Worrall, D.M.; Birkinshaw, M.; Kraft, R.P.; Sivakoff, G.R.; Jordan, A.; Hardcastle, M.J.; Brassington, Nicola; Croston, J.H.; Evans, D.A.; Forman, W.R.; Harris, W.E.; Jones, C.; Juett, A.M.; Murray, S.S.; Nulsen, P.E.J.; Raychaudhury, S.; Sarazin, C.L.; Woodley, K.A. (2008)We report an X-ray spectral study of the transverse structure of the Centaurus A jet using new data from the Chandra Cen A Very Large Project. We find that the spectrum steepens with increasing distance from the jet axis, ...