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 …

As the luminosity of an accreting black hole drops to a few percent of Eddington, the
spectrum switches from the familiar soft state to a hard state that is well-described by a …

Black hole (BH) accretion flows and jets are qualitatively affected by the presence of ordered
magnetic fields. We study fully 3D global general relativistic magnetohydrodynamic (MHD) …

We examine the disc—jet connection in stellar mass and supermassive black holes by
investigating the properties of their compact emission in the X-ray and radio bands. We …

We present results from two long-duration general relativistic magneto-hydrodynamic
(GRMHD) simulations of advection-dominated accretion around a non-spinning black hole …

The formation and large-scale propagation of Poynting-dominated jets produced by
accreting, rapidly rotating black hole systems are studied by numerically integrating the …

We present three-dimensional MHD simulations of rotating radiatively inefficient accretion
flows onto black holes. We continuously inject magnetized matter into the computational …

Previous MHD simulations have shown that wind must exist in black hole hot accretion
flows. In this paper, we continue our study by investigating the detailed properties of wind …

With most physicists and astrophysicists in agreement that black holes do indeed exist, the
focus of astrophysical black hole research has shifted to the detailed properties of these …

Black hole (BH) accretion discs formed in compact-object mergers or collapsars may be
major sites of the rapid-neutron-capture (r-) process, but the conditions determining the …