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Relativistic Distortions in the X-ray Spectrum of Cyg X-1
Chris Done, Piotr Zycki
We present the first significant detection of relativistic smearing of the X-ray reflection spectrum from the putative accretion disk in the low/hard state of Cyg X-1. The ionizati…
An unstable inner disk in Cyg X-1 ?
Chris Done, Piotr T. Zycki
We present the first significant detection of relativistic smearing of the X-ray reflection spectrum from the putative accretion disk in the low/hard state of Cyg X--1. The ionizat…
On accretion flow in Soft X-ray Transients
P. T. Zycki, C. Done, D. A. Smith
We have analyzed archival Ginga data of a number of Soft X-ray Transient sources and modelled them in an attempt to constrain the geometry and physical properties of accretion. Our…
X-ray spectral evolution of GS 2023+338 (V404 Cyg) during decline after outburst
P. Zycki, C. Done, D. Smith
We have re-analyzed archival GINGA data of the soft X-ray transient source GS2023+308 (V404 Cyg) covering the decline phase of its May 1989 outburst. Our spectral modelling include…
Observation of Cen A by the Rossi X-ray Timing Explorer
R. E. Rothschild, D. L. Band, P. R. Blanco +13
The Rossi X-ray Timing Explorer made a short (10 ks) observation of the radio galaxy Centaurus A on 14 August 1996. Analysis of the combined 2.5-240 keV spectrum has revealed a hea…
The broad-band X-ray spectrum of Mrk 3
R. G. Griffiths, R. S. Warwick, I. Georgantopoulos +2
We have used non-simultaneous Ginga, ASCA and ROSAT observations to investigate the complex X-ray spectrum of the Seyfert 2 galaxy Mrk 3. We find that the composite spectrum can be…
The X-ray emission of the polar BL Hydri
G. Matt, R. Barcaroli, T. Belloni +8
We report on the analysis of the ASCA and BeppoSAX X-ray observations of the polar system BL Hyi. Emission from both poles is apparent in both observations; the emission from the s…
BeppoSAX observations of the long period polar system V1309 Ori
D. de Martino, R. Barcaroli, G. Matt +8
We present BeppoSAX observations of the peculiar long period polar system V1309 Ori (RXJ0515.6+0105). The source was detected simultaneously at soft and, for the first time, at har…
Evolution of the accretion flow in Nova Muscae 1991
Piotr Zycki, Chris Done, David Smith
We identify the X-Ray reflected component in the Ginga spectra of Nova Muscae 1991, a Black Hole transient system used as the prototype for the recent model of Esin, McClintock & N…