7 papers
A new population of X-ray transients in the Galactic Centre
Masaaki Sakano, Robert S. Warwick, Anne Decourchelle +1
A comparison of the XMM-Newton and Chandra Galactic Centre (GC) Surveys has revealed two faint X-ray transients with contrasting properties. The X-ray spectrum of XMM J174544-2913.…
The XMM-Newton view of the Galactic Centre
Masaaki Sakano, Robert S. Warwick, Anne Decourchelle
In X-rays, the Galactic Centre (GC) Region appears as a complex of diffuse thermal and non-thermal X-ray emission intermixed with a population of luminous discrete sources. Here we…
A new look at the X-ray properties of the Galaxy
R. S. Warwick
Observational programmes currently underway with both Chandra and XMM-Newton are set to revolutionize our view of our own Galaxy. This is fortunate since the X-ray band can provide…
The Galactic Plane Observed by XMM-Newton
A. Hands, R. Warwick, M. Watson +1
In A0-1 we proposed an ambitious long-term survey of selected regions of our Galaxy (the XGPS survey) using the EPIC CCD cameras on XMM-Newton. The first phase of the programme, wh…
The nature of ultraluminous X-ray sources in nearby galaxies
T. P. Roberts, M. R. Goad, M. J. Ward +2
The advanced capabilities of the Chandra and XMM-Newton observatories mean that, for the first time, the detailed study of the brightest point-like X-ray sources in nearby galaxies…
Evidence for an ionised disc in the narrow-line Seyfert 1 galaxy Ark 564
S. Vaughan, K. A. Pounds, J. Reeves +2
We present simultaneous ASCA and RXTE observations of Ark 564, the brightest known ``narrow-line'' Seyfert 1 in the 2-10 keV band. The measured X-ray spectrum is dominated by a ste…