• Publications
  • Influence
X-ray reflection from cold matter in Active Galactic Nuclei and X-ray binaries
Weak, broad emission lines due to low-ionisation stages of iron, and other spectral features, have recently been observed in the X-ray spectra of Active Galactic Nuclei and in some Galatic X-rayExpand
  • 778
  • 164
The ROSAT Brightest Cluster Sample — I. The compilation of the sample and the cluster log N—log S distribution
We present a 90 per cent flux-complete sample of the 201 X-ray-brightest clusters of galaxies in the northern hemisphere (δ ≥ 0°), at high Galactic latitudes (|b| ≥ 20°), with measured redshifts z ≤Expand
  • 518
  • 139
  • PDF
Gravitationally redshifted emission implying an accretion disk and massive black hole in the active galaxy MCG–6–30–15
ACTIVE galactic nuclei and quasars are probably powered by the accretion of gas onto a supermassive black hole at the centre of the host galaxy1, but direct confirmation of the presence of a blackExpand
  • 773
  • 75
The ROSAT Brightest Cluster Sample - IV. The extended sample
We present a low-flux extension of the X-ray-selected ROSAT Brightest Cluster Sample (BCS) published in Paper I of this series. Like the original BCS and employing an identical selection procedure,Expand
  • 282
  • 72
  • PDF
An ultraluminous X-ray source powered by an accreting neutron star
The majority of ultraluminous X-ray sources are point sources that are spatially offset from the nuclei of nearby galaxies and whose X-ray luminosities exceed the theoretical maximum for sphericalExpand
  • 364
  • 67
  • PDF
A ROSAT study of the cores of clusters of galaxies — I. Cooling flows in an X-ray flux-limited sample
ABSTRA C T This is the first part of a study of the detailed X-ray properties of the cores of nearby clusters. We have used the flux-limited sample of 55 clusters listed by Edge et al., and archivalExpand
  • 336
  • 65
  • PDF
The relation between accretion rate and jet power in X-ray luminous elliptical galaxies
Using Chandra X-ray observations of nine nearby, X-ray luminous elliptical galaxies with good optical velocity dispersion measurements, we show that a tight correlation exists between the BondiExpand
  • 388
  • 64
  • PDF
A very deep Chandra observation of the Perseus cluster: shocks, ripples and conduction
We present the first results from a very deep Chandra X-ray observation of the core of the Perseus cluster of galaxies. A pressure map reveals a clear thick band of high pressure around the innerExpand
  • 448
  • 48
  • PDF
ACCRETION ONTO THE SUPERMASSIVE BLACK HOLE IN M87
Chandra X-ray observations of the giant elliptical galaxy M87 resolve the thermal state of the hot interstellar medium into the accretion (Bondi) radius of its central 3 × 109 M☉ black hole. WeExpand
  • 224
  • 45
  • PDF
Chandra imaging of the complex X-ray core of the Perseus cluster
ABSTRACT We report subarcsec-resolution X-ray imaging of the core ofthe Perseus cluster around thegalaxy NGC1275 with the Chandra X-ray Observatory. The ROSAT-discovered holes asso-ciated with theExpand
  • 446
  • 44
  • PDF