In this article, we will briefly review the current empirical understanding of the relation
between accretion state and outflows in accreting stellar mass black holes. The focus will be …

I review the current status of X-ray reflection (aka broad iron line) based black hole spin
measurements. This is a powerful technique that allows us to measure robust black hole …

Microcalorimeters have shown remarkable success in delivering high-spectral-resolution
observations of the hot and energetic Universe, and have paved the way to revolutionary …

Ultraluminous X-ray sources are extragalactic, off-nucleus, point sources in galaxies, and
have X-ray luminosities in excess of 3× 1039 ergs per second. They are thought to be …

Ongoing studies with XMM–Newton have shown that powerful accretion disc winds, as
revealed through highly ionized Fe K-shell absorption at E≥ 6.7 keV, are present in a …

Variations in the X-ray emission from the narrow-line Seyfert 1 galaxy, Markarian 335, are
studied on both long and short time-scales through observations made between 2006 and …

Recent models of black hole growth in a cosmological context have forwarded a paradigm in
which the growth is self-regulated by feedback from the black hole itself. Here we use …

In the last decade, X‐ray spectroscopy has enabled a wealth of discoveries of photoionised
absorbers in X‐ray binaries. Studies of such accretion disc atmospheres and winds are of …

We report on the results of spectral fits made to a NuSTAR observation of the black hole
GRS 1915+ 105 in a" plateau" state. This state is of special interest because it is similar to …

Invariably, black hole accretion disks seem to produce plasma outflows that result in blue-
shifted absorption features in their spectra. The X-ray absorption-line properties of these …