57 citations · 271 across the 13 of their papers we have counts for
13 papers
Safety first: Stability and dissipation of line-tied force-free flux tubes in magnetized coronae
Natalie Rugg, Jens F. Mahlmann, Anatoly Spitkovsky
Magnetized plasma columns and extended magnetic structures with both footpoints anchored to a surface layer are an important building block of astrophysical dissipation models. Cur…
Anomalous coupling in radiation mediated shocks}
A. Levinson, A. Granot, A. Vanthieghem +1
We summarize recent attempts to unravel the role of plasma kinetic effects in radiation mediated shocks. Such shocks form in all strong stellar explosions and are responsible for t…
Three-dimensional dynamics of strongly twisted magnetar magnetospheres: Kinking flux tubes and global eruptions
J. F. Mahlmann, A. A. Philippov, V. Mewes +3
The origins of the various outbursts of hard X-rays from magnetars (highly magnetized neutron stars) are still unknown. We identify instabilities in relativistic magnetospheres tha…
Magnetically driven coupling in relativistic radiation-mediated shocks
J. F. Mahlmann, A. Vanthieghem, A. A. Philippov +3
The radiation drag in photon-rich environments of cosmic explosions can seed kinetic instabilities by inducing velocity spreads between relativistically streaming plasma components…
Electromagnetic fireworks: Fast radio bursts from rapid reconnection in the compressed magnetar wind
J. F. Mahlmann, A. A. Philippov, A. Levinson +2
One scenario for the generation of fast radio bursts (FRBs) is magnetic reconnection in a current sheet of the magnetar wind. Compressed by a strong magnetic pulse induced by a mag…
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…
Weak Alfvénic turbulence in relativistic plasmas. Part 1. Dynamical equations and basic dynamics of interacting resonant triads
J. M. TenBarge, B. Ripperda, A. Chernoglazov +6
Alfvén wave collisions are the primary building blocks of the non-relativistic turbulence that permeates the heliosphere and low-to-moderate energy astrophysical systems. However,…
Weak Alfvénic turbulence in relativistic plasmas II: Current sheets and dissipation
B. Ripperda, J. F. Mahlmann, A. Chernoglazov +6
Alfvén waves as excited in black hole accretion disks and neutron star magnetospheres are the building blocks of turbulence in relativistic, magnetized plasmas. A large reservoir o…
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).…