Stellar mass black holes in the low-hard state may hold clues to jet formation and basic accretion
disc physics, but the nature of the accretion flow remains uncertain. A standard thin disc …

We present measurements of the dimensionless spin parameters and inner-disc inclination
of two stellar-mass black holes. The spin parameter of SWIFT J1753.5−0127 and GRO J1655…

We present a systematic study of GX 339−4 in both its very high and low hard states from
simultaneous observations made with XMM–Newton and RXTE in 2002 and 2004. The X-ray …

Since the 1995 discovery of the broad iron K-line emission from the Seyfert galaxy MCG–6-30-15
(ref. 1 ), broad iron K lines have been found in emission from several other Seyfert …

We measure the spin of XTE J1550−564 using the two leading methods: (i) modelling the
thermal continuum spectrum of the accretion disc; and (ii) modelling the broad red wing of the …

We present an X-ray spectral analysis of a large sample of 25 ‘bare’ active galactic nuclei (AGN),
sources with little or no complicating intrinsic absorption, observed with Suzaku. Our …

The Suzaku AGN Spin Survey is designed to determine the supermassive black hole spin in
six nearby active galactic nuclei (AGNs) via deep Suzaku stares, thereby giving us our first …

The spin of Cygnus X-1 is measured by fitting reflection models to Suzaku data covering the
energy band 0.9–400 keV. The inner radius of the accretion disc is found to lie within 2 …

NGC 3783 was observed for approximately 210 ks by Suzaku and in this time showed
significant spectral and flux variability at both short (20 ks) and long (100 ks) timescales. The full …

We report on a Suzaku observation of the newly discovered X-ray binary MAXI J1836–194.
The source is found to be in the hard/intermediate spectral state and displays a clear and …