Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Brassington, Nicola J."'
Autor:
Burke, Mark J., Kraft, Ralph P., Soria, Roberto, Maccarone, Thomas J., Raychaudhury, Somak, Sivakoff, Gregory R., Birkinshaw, Mark, Brassington, Nicola J., Forman, William R., Hardcastle, Martin J., Jones, Christine, Murray, Stephen S., Worrall, Diana M.
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 Lx (2-3)E39 erg/s, at the lower end of the ULX luminosity range. T
Externí odkaz:
http://arxiv.org/abs/1307.8157
Autor:
Burke, Mark J., Raychaudhury, Somak, Kraft, Ralph P., Maccarone, Thomas J., Brassington, Nicola J., Hardcastle, Martin J., Kainulainen, Jouni, Woodley, Kristin A., Goodger, Joanna L., Sivakoff, Gregory R., Forman, William R., Jones, Christine, Murray, Stephen S., Birkinshaw, Mark, Croston, Judith H., Evans, Daniel A., Gilfanov, Marat, Jordan, Andres, Sarazin, Craig L., Voss, Rasmus, Worrall, Diana M., Zhang, Zhongli
We present a spectral investigation of X-ray binaries 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 based on the behavior of the fitted
Externí odkaz:
http://arxiv.org/abs/1302.0851
Autor:
Burke, Mark J., Raychaudhury, Somak, Kraft, Ralph P., Brassington, Nicola J., Hardcastle, Martin J., Goodger, Joanna L., Sivakoff, Gregory R., Forman, William R., Jones, Christine, Woodley, Kristin A., Murray, Stephen S., Kainulainen, Jouni, Birkinshaw, Mark, Croston, Judith H., Evans, Daniel A., Gilfanov, Marat, Jordan, Andres, Sarazin, Craig L., Voss, Rasmus, Worrall, Diana M., Zhang, Zhongli
Publikováno v:
ApJ, 749, 112, 2012
We report the discovery of a bright X-ray transient, CXOU J132527.6-430023, in the nearby early-type galaxy NGC 5128. The source was first detected over the course of five Chandra observations in 2007, reaching an unabsorbed outburst luminosity of 1-
Externí odkaz:
http://arxiv.org/abs/1202.3149
Autor:
Zhang, Zhongli, Gilfanov, Marat, Voss, Rasmus, Sivakoff, Gregory R., Kraft, Ralph P., Brassington, Nicola J., Kundu, Arunav, Jordán, Andrés, Sarazin, Craig
Based on the archival data from the Chandra observations of nearby galaxies, we study different sub populations of low-mass X-ray binaries (LMXBs) - dynamically formed systems in globular clusters (GCs) and in the nucleus of M31 and (presumably primo
Externí odkaz:
http://arxiv.org/abs/1103.4486
Autor:
Sivakoff, Gregory R., Kraft, Ralph P., Jordán, Andrés, Juett, Adrienne M., Evans, Daniel A., Forman, William R., Hardcastle, Martin J., Sarazin, Craig L., Birkinshaw, Mark, Brassington, Nicola J., Croston, Judith H., Harris, William E., Jones, Christine, Murray, Stephen S., Raychaudhury, Somak, Woodley, Kristin A., Worrall, Diana M.
We report the discovery of a bright transient X-ray source, CXOU J132518.2-430304, towards Centaurus A (Cen A) using six new Chandra X-Ray Observatory observations in 2007 March--May. Between 2003 and 2007, its flux has increased by a factor of >770.
Externí odkaz:
http://arxiv.org/abs/0803.0549
Autor:
Jordan, Andres, Sivakoff, Gregory R., McLaughlin, Dean E., Blakeslee, John P., Evans, Daniel A., Kraft, Ralph P., Hardcastle, Martin J., Peng, Eric W., Cote, Patrick, Croston, Judith H., Juett, Adrienne M., Minniti, Dante, Raychaudhury, Somak, Sarazin, Craig L., Worrall, Diana M., Harris, William E., Woodley, Kristin A., Birkinshaw, Mark, Brassington, Nicola J., Forman, William R., Jones, Christine, Murray, Stephen S.
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 find that 41 host X-ray point so
Externí odkaz:
http://arxiv.org/abs/0711.2303
Publikováno v:
Proceedings of the International Astronomical Union. 08/03/2005, Vol. 1 Issue S230, p137-142. 6p.
Autor:
Zhang, Zhongli., Gilfanov, Marat., Voss, Rasmus., Sivakoff, Gregory Robert., Kraft, Ralph P., Brassington, Nicola J., Kundu, Arunav., Jordán, Andrés Jordán., Sarazin, Craig, L.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::425c005004bfcbf3ebcf2e4cdbb7ae51
Autor:
Croston, Judith H., Kraft, Ralph P., Hardcastle, Martin J., Birkinshaw, Mark, Worrall, Diana M., Nulsen, P. E. J., Penna, R. F., Sivakoff, Gregory Robert, Jordán, Andrés, Brassington, Nicola J., Evans, Daniel A., Forman, William R., Gilfanov, Marat, Goodger, Joanna L., Harris, Wayne E., Jones, Christine, Juett, Adrienne M., Murray, Stephen S., Raychaudhury, Somak, Sarazin, Craig L., Voss, Rasmus, Woodley, Kristin A.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a23ce1044ea25c8cc39d66e819f1b256
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