The continuum-fitting and the iron line methods are leading techniques capable of probing
the spacetime geometry around astrophysical black hole candidates and testing the no-hair …

The spins of ten stellar black holes have been measured using the continuum-fitting method.
These black holes are located in two distinct classes of X-ray binary systems, one that is …

Based on a spectral analysis of the X-ray continuum that employs a fully relativistic accretion
disk model, we conclude that the compact primary of the binary X-ray source GRS 1915+ …

A typical galaxy is thought to contain tens of millions of stellar-mass black holes, the
collapsed remnants of once massive stars, and a single nuclear supermassive black hole …

The standard general relativistic model of a razor-thin accretion disc around a black hole,
developed by Novikov & Thorne (NT) in 1973, assumes the shear stress vanishes at the …

We present a set of four three-dimensional, general relativistic, radiation
magnetohydrodynamical simulations of black hole accretion at supercritical mass accretion …

Changing-look quasars are a recently identified class of active galaxies in which the strong
UV continuum and/or broad optical hydrogen emission lines associated with unobscured …

Disc spectra from highly luminous black hole binaries are observed to be rather simple,
despite theoretical predictions to the contrary. We collate the disc-dominated spectra from …

We explore the parameter dependence of inner disk stress in black hole accretion by
contrasting the results of a number of simulations, all employing three-dimensional general …

We address the ability of broad iron emission lines from black hole accretion disks to
diagnose the spin of the black hole. Using a high-resolution three-dimensional MHD …