35 citations · 93 across the 9 of their papers we have counts for
9 papers
Disc breaking and parametric instability in warped accretion discs
Loren E Held, Gordon I. Ogilvie
We present the first local simulations of disc breaking/tearing in a warped accretion disc. Warps can arise due to a misalignment between the disc and the rotation axis of the cent…
MRI-driven dynamo at high Pm numbers
Alexis Reboul-Salze, Loren E. Held, Kenta Kiuchi
To power gamma-ray bursts and other high-energy events, large-scale magnetic fields are required to extract rotational energy from compact objects such as black holes and neutron s…
Instability and warping in vertically oscillating accretion discs
Loren E. Held, Gordon I. Ogilvie
Many accretion discs have been found to be distorted: either warped due a misalignment in the system, or non-circular as a result of orbital eccentricity or tidal deformation by a…
MRI turbulence in vertically stratified accretion discs at large magnetic Prandtl numbers
Loren E. Held, George Mamatsashvili, Martin E. Pessah
The discovery of the first binary neutron star merger, GW170817, has spawned a plethora of global numerical relativity simulations. These simulations are often ideal (with dissipat…
MRI turbulence in accretion discs at large magnetic Prandtl numbers
Loren E. Held, George Mamatsashvili
The effect of large magnetic Prandtl number (the ratio of viscosity to resistivity) on the turbulent transport and energetics of the magnetorotational instability (MRI)…
Implementation of advanced Riemann solvers in a neutrino-radiation magnetohydrodynamics code in numerical relativity and its application to a binary neutron star merger
Kenta Kiuchi, Loren E. Held, Yuichiro Sekiguchi +1
We implement advanced Riemann solvers HLLC and HLLD \cite{Mignone:2005ft,MUB:2009} together with an advanced constrained transport scheme \cite{Gardiner:2007nc} in a numerical-rela…
The stress-pressure lag in MRI turbulence and its implications for thermal instability in accretion discs
Loren E. Held, Henrik N. Latter
The classical alpha-disc model assumes that the turbulent stress scales linearly with -- and responds instantaneously to -- the pressure. It is likely, however, that the stress pos…
Magnetohydrodynamic convection in accretion discs
Loren E. Held, Henrik N. Latter
Convection has been discussed in the field of accretion discs for several decades, both as a means of angular momentum transport and also because of its role in controlling discs'…
Hydrodynamic convection in accretion discs
Loren E. Held, Henrik N. Latter
The prevalence and consequences of convection perpendicular to the plane of accretion discs have been discussed for several decades. Recent simulations combining convection and the…