Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Nicola Brassington"'
Autor:
Andrew J. King, Roger R. Fu, Nicola Brassington, Dong-Woo Kim, J. C. Gallagher, G. Fabbiano, Silvia Pellegrini, V. Kalogera, Andreas Zezas, Ginevra Trinchieri, Steve Zepf, Roger L. Davies, Lorella Angelini
We report the discovery of a faint (L_x ~ 4 10^37 erg/s, 0.5-2 keV), out-flowing gaseous hot interstellar medium (ISM) in NGC 3379. This represents the lowest X-ray luminosity ever measured from a hot phase of the ISM in a nearby early type galaxy. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc0627a414a5f646352590c3c859aa5b
https://ora.ox.ac.uk/objects/uuid:bedcff70-a604-46bf-8b09-3cf4133c60d3
https://ora.ox.ac.uk/objects/uuid:bedcff70-a604-46bf-8b09-3cf4133c60d3
Autor:
Roger L. Davies, Andreas Zezas, Ar King, Giuseppina Fabbiano, Kalogera, Silvia Pellegrini, Ginevra Trinchieri, J. C. Gallagher, A. Kundu, S. E. Zepf, Tassos Fragos, Lorella Angelini, D. W. Kim, Nicola Brassington
We present the properties of the discrete X-ray sources detected in our monitoring program of the `typical' elliptical galaxy, NGC 3379, observed with Chandra ACIS-S in five separate pointings, resulting in a co-added exposure of 324-ks. From this de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c4c2ecc93e190a5a85238306630647f
https://doi.org/10.1086/591527
https://doi.org/10.1086/591527
Autor:
J. H. Croston, Andrés Jordán, William E. Harris, Gregory R. Sivakoff, R. P. Kraft, Adrienne M. Juett, Craig L. Sarazin, P. E. J. Nulsen, Daniel A. Evans, J. L. Goodger, Martin J. Hardcastle, S. S. Murray, Diana M Worrall, William R. Forman, Mark Birkinshaw, Somak Raychaudhury, C. Jones, Nicola Brassington, Kristin A. Woodley
Publikováno v:
The Astrophysical Journal. 677:L97-L100
We present preliminary results from a deep (600 ks) {\em Chandra} observation of the hot interstellar medium of the nearby early-type galaxy Centaurus A (Cen A). We find a surface brightness discontinuity in the gas $\sim$3.5 kpc from the nucleus spa
Autor:
William E. Harris, Gregory R. Sivakoff, Kristin A. Woodley, Andrés Jordán, Adrienne M. Juett, Martin J. Hardcastle, Craig L. Sarazin, Daniel A. Evans, William R. Forman, Diana M Worrall, Nicola Brassington, Ralph P. Kraft, Somak Raychaudhury, Mark Birkinshaw, Judith H. Croston, Stephen S. Murray, Christine Jones
Publikováno v:
The Astrophysical Journal. 677:L27-L30
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.
Autor:
Christine Jones, William E. Harris, Gregory R. Sivakoff, Daniel A. Evans, Andrés Jordán, Somak Raychaudhury, Paul Nulsen, Stephen S. Murray, Martin J. Hardcastle, Nicola Brassington, Diana M Worrall, William R. Forman, Adrienne M. Juett, Mark Birkinshaw, Judith H. Croston, Craig L. Sarazin, Kristin A. Woodley, Ralph P. Kraft
Publikováno v:
The Astrophysical Journal. 673:L135-L138
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, and that this steepening can
Autor:
Stephen S. Murray, Gregory R. Sivakoff, Andrés Jordán, William E. Harris, Kristin A. Woodley, Martin J. Hardcastle, Mark Birkinshaw, Daniel A. Evans, Craig L. Sarazin, William R. Forman, Nicola Brassington, Adrienne M. Juett, Diana M Worrall, Judith H. Croston, Christine Jones, J. L. Goodger, Ralph P. Kraft, Somak Raychaudhury, Paul Nulsen
Publikováno v:
University of Bristol-PURE
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 at 4.5 kpc from the nucleus. W
We report significant inhomogeneities in the projected two-dimensional (2D) spatial distributions of Low-Mass X-ray Binaries (LMXBs) and Globular Clusters (GCs) of the intermediate mass elliptical galaxy NGC4278. In the inner region of NGC4278, a sig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c9d9f2c201a70230858fd16f49a4d5f
http://arxiv.org/abs/1401.3747
http://arxiv.org/abs/1401.3747
Autor:
Giovanni G. Fazio, Matthew L. N. Ashby, Christopher C. Hayward, Andreas Zezas, Lauranne Lanz, Nicola Brassington, Lars Hernquist, Howard A. Smith
We present the first systematic comparison of ultraviolet-millimeter spectral energy distributions (SEDs) of observed and simulated interacting galaxies. Our sample is drawn from the Spitzer Interacting Galaxy Survey, and probes a range of galaxy int
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be246df214c1041c9b534c5420841ab4
Autor:
Christine Jones, Gregory R. Sivakoff, Mark J. Burke, Stephen S. Murray, Roberto Soria, Somak Raychaudhury, Mark Birkinshaw, Martin J. Hardcastle, Ralph P. Kraft, Nicola Brassington, William R. Forman, Diana M Worrall, Thomas J. Maccarone
Publikováno v:
Burke, M J, Kraft, R P, Soria, R, Maccarone, T J, Raychaudhury, S, Sivakoff, G R, Birkinshaw, M, Brassington, N J, Forman, W R, Hardcastle, M J, Jones, C, Murray, S S & Worrall, D M 2013, ' The fading of two transient ultraluminous x-ray sources to below the stellar mass Eddington limit ', Astrophysical Journal, vol. 775, no. 1, 21, pp. 21-29 . https://doi.org/10.1088/0004-637X/775/1/21
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)× � 10 39 erg s -1 , at the lower end of the ULX luminos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc8f962ec90a04580c372e4c6b14a252
https://research-information.bris.ac.uk/ws/files/34706317/1307.8157v1
https://research-information.bris.ac.uk/ws/files/34706317/1307.8157v1
Autor:
Nicholas J. Wright, Andrew J. King, Andreas Zezas, Tassos Fragos, Giuseppina Fabbiano, Ginevra Trinchieri, A. Kundu, Stephen E. Zepf, Silvia Pellegrini, Nicola Brassington, Dong-Woo Kim
We report the spectral and temporal variability properties of 18 candidate transient and potential transient (TC and PTC) sources detected in deep multi-epoch Chandra observation of the nearby elliptical galaxies, NGC 3379, NGC 4278 and NGC 4697. Onl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47571700ec2102edef476698bdc0a2fb
http://hdl.handle.net/11585/126450
http://hdl.handle.net/11585/126450