272 citations · 472 across the 14 of their papers we have counts for
14 papers
The microphysics of collisionless shock waves
A. Marcowith, A. Bret, A. Bykov +12
Collisionless shocks, that is shocks mediated by electromagnetic processes, are customary in space physics and in astrophysics. They are to be found in a great variety of objects a…
On the Anisotropic Nature of MRI-Driven Turbulence in Astrophysical Disks
Gareth C. Murphy, Martin E. Pessah
The magnetorotational instability is thought to play an important role in enabling accretion in sufficiently ionized astrophysical disks. The rate at which MRI-driven turbulence tr…
PIC simulation of a thermal anisotropy-driven Weibel instability in a circular rarefaction wave
M. E. Dieckmann, G. Sarri, G. C. Murphy +6
The expansion of an initially unmagnetized planar rarefaction wave has recently been shown to trigger a thermal anisotropy-driven Weibel instability (TAWI), which can generate magn…
Field amplification, vortex formation, and electron acceleration in a plasma protoshock: effect of asymmetric density profile
Gareth C. Murphy, Mark E. Dieckmann, Luke O'C. Drury
Gamma ray bursts (GRBs) are thought to originate from highly relativistic jets. The fireball model predicts internal shocks in the jets, causing magnetic field to be amplified and…
Multidimensional simulations of magnetic field amplification and electron acceleration to near-energy equipartition with ions by a mildly relativistic quasi-parallel plasma collision
Gareth C. Murphy, Mark E. Dieckmann, Luke O'C Drury
The energetic electromagnetic eruptions observed during the prompt phase of gamma-ray bursts are attributed to synchrotron emissions. The internal shocks moving through the ultrare…
Magnetic field amplification and electron acceleration to near-energy equipartition with ions by a mildly relativistic quasi-parallel plasma protoshock
Gareth C. Murphy, Mark E. Dieckmann, Antoine Bret +1
The prompt emissions of gamma-ray bursts are seeded by radiating ultrarelativistic electrons. Internal shocks propagating through a jet launched by a stellar implosion, are expecte…