We present two new Lagrangian methods for hydrodynamics, in a systematic comparison
with moving-mesh, smoothed particle hydrodynamics (SPH), and stationary (non-moving) …

It has recently become possible to zoom-in from cosmological to sub-pc scales in galaxy
simulations to follow accretion onto supermassive black holes (SMBHs). However, at some …

We conduct global three-dimensional radiation magnetohydrodynamic simulations of the
inner regions of accretion flows around a 5× 10 8 M⊙ black hole, with mass accretion rates …

Magnetic fields are known to be dynamically important in the interstellar medium of our own
Galaxy, and they are ubiquitously observed in diffuse gas in the haloes of galaxies and …

We perform three-dimensional, vertically-stratified, local shearing-box ideal MHD
simulations of the magnetorotational instability (MRI) that include a net vertical magnetic flux …

We present 3D magnetohydrodynamic simulations of the fueling of supermassive black
holes in elliptical galaxies from a turbulent cooling medium on galactic scales, taking M87 …

In a companion paper, we reported the self-consistent formation of quasar accretion disks
with inflow rates $\sim 10\,{\rm M_ {\odot}\, yr^{-1}} $ down to< 300 Schwarzschild radii from …

We present Trinity, a flexible empirical model that self-consistently infers the statistical
connection between dark matter haloes, galaxies, and supermassive black holes (SMBHs) …

Recently, we explored new meshless finite-volume Lagrangian methods for hydrodynamics:
the 'meshless finite mass'(MFM) and 'meshless finite volume'(MFV) methods; these capture …

Strongly magnetized accretion discs around black holes have attractive features that may
explain enigmatic aspects of X-ray binary behaviour. The structure and evolution of these …