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Chandra observations of RXJ1347.5-1145: the distribution of mass in the most X-ray luminous galaxy cluster known
S. W. Allen, R. W. Schmidt, A. C. Fabian
We present Chandra observations of RXJ1347.5-1145, the most X-ray luminous cluster of galaxies known. We report the discovery of a region of relatively hot, bright X-ray emission,…
The Chandra High Energy Transmission Grating Spectrometer probes the dusty warm absorber in the Seyfert 1 galaxy MCG--6-30-15
J. C. Lee, C. R. Canizares, H. L. Marshall +4
The Chandra HETGS spectra of the Seyfert 1 galaxy MCG--6-30-15 show numerous narrow, unresolved (FWHM < 200 km/s) absorption lines from a wide range of ionization states of N, O, M…
Spatially-resolved X-ray spectroscopy of the core of the Centaurus cluster
J. S. Sanders, A. C. Fabian
We present Chandra data from a 31.7 ks observation of the Centaurus cluster, using the ACIS-S detector. Images of the X-ray emission show a plume-like feature at the centre of the…
Thunderclouds and accretion discs: a model for the spectral and temporal variability of Seyfert 1 galaxies
A. Merloni, A. C. Fabian
X-ray observations of Seyfert 1 galaxies offer the unique possibility of observing spectral variability on timescales comparable to the dynamical time of the inner accretion flow.…
Multi-wavelength observations of serendipitous Chandra sources
P. Gandhi, C. S. Crawford, A. C. Fabian +4
We describe progress in a programme to study a sample of sources typical of those which contribute a large fraction of the hard X-ray background. The sources are selected from the…
Deep Sky Objects and the X-ray Background
A. C. Fabian
Deep observations of the X-ray Sky have now resolved most of the X-ray Background. Obscured active galaxies are a key component. The obscured objects which dominate at fluxes above…
X-rays and accretion discs as probes of the strong gravity of black holes
A. C. Fabian
The observations and interpretation of broad iron lines in the X-ray spectra of Seyfert 1 galaxies are reviewed. The line profiles observed from MCG--6-30-15 and NGC 3516 show exte…
A hard X-ray constraint on the presence of an AGN in the ultra-luminous infrared galaxy Arp220
K. Iwasawa, G. Matt, M. Guainazzi +1
We present X-ray results on the ultraluminous infrared galaxy Arp220 obtained with BeppoSAX. The X-ray emission up to 10 keV is detected. No significant signal is detected with the…
A Complete Relativistic Ionized Accretion Disc in Cygnus X-1
A. J. Young, A. C. Fabian, R. R. Ross +1
The galactic black hole candidate Cygnus X-1 is observed to be in one of two X-ray spectral states; either the low/hard (low soft X-ray flux and a flat power law tail) or high/soft…
X-ray, Optical, and Radio Observations of the Type II Supernovae 1999em and 1998S
D. Pooley, W. H. G. Lewin, D. W. Fox +12
Observations of the Type II-P (plateau) Supernova (SN) 1999em and Type IIn (narrow emission line) SN 1998S have enabled estimation of the profile of the SN ejecta, the structure of…
Chandra detection of the intracluster medium around 3C294 at z=1.786
A. C. Fabian, C. S. Crawford, S. Ettori +1
We present a Chandra observation of the powerful radio galaxy 3C294 showing clear evidence for a surrounding intracluster medium. At a redshift of 1.786 this is the most distant cl…
Chandra X-ray observations of the 3C295 cluster core
S. W. Allen, G. B. Taylor, P. E. J. Nulsen +7
We examine the properties of the X-ray gas in the central regions of the distant (z=0.46), X-ray luminous cluster of galaxies surrounding the powerful radio source 3C 295, using ob…