Neutral-atomic and molecular outflows are a common occurrence in galaxies, near and far.
They operate over the full extent of their galaxy hosts, from the innermost regions of galactic …

The rapid neutron capture process (r process) is believed to be responsible for about half of
the production of the elements heavier than iron and contributes to abundances of some …

Abstract The Event Horizon Telescope (EHT) has mapped the central compact radio source
of the elliptical galaxy M87 at 1.3 mm with unprecedented angular resolution. Here we …

We investigate the long-term evolution of black hole accretion discs formed in neutron star
mergers. These discs expel matter that contributes to an r-process kilonova, and can …

We describe global, 3D, time‐dependent, non‐radiative, general‐relativistic,
magnetohydrodynamic simulations of accreting black holes (BHs). The simulations are …

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) …

The radiative cooling timescales at the centers of hot atmospheres surrounding elliptical
galaxies, groups and clusters are much shorter than their ages. Therefore, hot atmospheres …

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 …

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 …

Fully general relativistic models of astrophysical sources are in high demand, not only since
the discovery of gravitational waves emitted from merging stellar mass black holes (Abbott et …