10 citations · 10 across the 1 of their papers we have counts for
6 papers
Diffusivity in force-free simulations of global magnetospheres
J. F. Mahlmann, M. A. Aloy
Abstract: Assuming that the numerical diffusivity triggered by violations of the force-free electrodynamics constraints is a proxy for the physical resistivity, we examine its impa…
Computational General Relativistic Force-Free Electrodynamics: II. Characterization of Numerical Diffusivity
J. F. Mahlmann, M. A. Aloy, V. Mewes +1
Scientific codes are an indispensable link between theory and experiment; in (astro-)plasma physics, such numerical tools are one window into the universe's most extreme flows of e…
Computational General Relativistic Force-Free Electrodynamics: I. Multi-Coordinate Implementation and Testing
J. F. Mahlmann, M. A. Aloy, V. Mewes +1
General relativistic force-free electrodynamics is one possible plasma-limit employed to analyze energetic outflows in which strong magnetic fields are dominant over all inertial p…
Striped Blandford/Znajek jets from advection of small scale magnetic field
J. F. Mahlmann, A. Levinson, M. A. Aloy
Black hole - accretion disc systems are the central engines of relativistic jets from stellar to galactic scales. We numerically quantify the unsteady outgoing Poynting flux throug…
Instability of twisted magnetar magnetospheres
J. F. Mahlmann, T. Akgün, J. A. Pons +2
We present three-dimensional force-free electrodynamics simulations of magnetar magnetospheres that demonstrate the instability of certain degenerate, high energy equilibrium solut…
Numerically solving the relativistic Grad-Shafranov equation in Kerr spacetimes: Numerical techniques
J. F. Mahlmann, P. Cerdá-Durán, M. A. Aloy
The study of the electrodynamics of static, axisymmetric and force-free Kerr magnetospheres relies vastly on solutions of the so called relativistic Grad-Shafranov equation (GSE).…