The study of ultraluminous X-ray sources (ULXs) has changed dramatically over the last
decade. In this review we first describe the most important observations of ULXs in various …

We review the properties and behavior of 20 X-ray binaries that contain a dynamically-
confirmed black hole, 17 of which are transient systems. During the past decade, many of …

Double neutron star (DNS) systems represent extreme physical objects and the endpoint of
an exotic journey of stellar evolution and binary interactions. Large numbers of DNS systems …

Black hole accretion flows can be divided into two broad classes: cold and hot. Whereas
cold accretion flows consist of cool optically thick gas and are found at relatively high mass …

We model the broad-band (optical/UV and X-ray) continuum spectrum of the 'changing-
look'active galactic nucleus (AGN) Mrk 1018, as it fades from Seyfert 1 to 1.9 in∼ 8 years …

Relativistic reflection features are commonly observed in the X-ray spectra of accreting black
holes. In the presence of high quality data and with the correct astrophysical model, X-ray …

High-resolution spectra of Galactic black holes (GBHs) reveal the presence of highly ionized
absorbers. In one GBH, accreting close to the Eddington limit for more than a decade, a …

I review the basics of the disc instability model (DIM) for dwarf novae and soft-X-ray
transients and its most recent developments, as well as the current limitations of the model …

We review the properties of 40 X-ray binaries that contain either a confirmed black hole or a
black hole candidate. After discussing briefly the significance of these Galactic black holes to …

We consider observational and theoretical estimates of the accretion disc viscosity
parameter α. We find that in thin, fully ionized discs, the best observational evidence …