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 …

This review covers the main aspects of black hole accretion disk theory. We begin with the
view that one of the main goals of the theory is to better understand the nature of black holes …

We explore the evolution of stellar mass black hole binaries (BHBs) which are formed in the
self-gravitating discs of active galactic nuclei (AGN). Hardening due to three-body scattering …

Some compact objects observed in gravitational wave events have masses in the gap
between known neutron stars (NSs) and black holes (BHs). The nature of these mass gap …

The bolometric luminosity of active galactic nuclei (AGNs) is difficult to determine, and
various approximations have been used to calibrate it against different observed properties …

When a star is tidally disrupted by a supermassive black hole (SMBH), roughly half of its
mass falls back to the SMBH at super-Eddington rates. As this gas is tenuously …

As one paper in a series reporting on a large reverberation mapping campaign of super-
Eddington accreting massive black holes (SEAMBHs) in active galactic nuclei (AGNs), we …

We study very high rate, spherically symmetric accretion flows on to massive black holes
(BHs; 102≲ M BH≲ 106 M⊙) embedded in dense metal-poor clouds, performing one …

This paper reports results of the third-year campaign of monitoring super-Eddington
accreting massive black holes (SEAMBHs) in active galactic nuclei (AGNs) between 2014 …

This is the second in a series of papers reporting on a large reverberation mapping (RM)
campaign to measure black hole (BH) mass in high accretion rate active galactic nuclei …