9 papers
Synchrotron-Regulated Relativistic Magnetohydrodynamic Turbulence: Emission, Polarization, and Faraday Rotation
Xiaochen Sun, Luca Comisso, Luca Comisso Lorenzo Sironi +3
Relativistic magnetized plasmas in many high-energy astrophysical systems are both turbulent and strongly radiative, yet their nonlinear dynamics and radiative outcomes remain poor…
Diocotron Modes in Pulsar Magnetospheres: Charge Diffusion and Implications for Radio Emission Variability
Matthew Goodbred, Anatoly Spitkovsky
The diocotron instability is a non-axisymmetric plasma instability that should occur generically in the differentially rotating equatorial plane of pulsar magnetospheres. We presen…
Electromagnetic Precursors to Binary Neutron Star Mergers: Kinetic Simulations of Magnetospheric Flaring
Jasmine Parsons, Anatoly Spitkovsky, Alexander Philippov +1
We present the first 3D global kinetic simulations of the interacting magnetospheres of pre-merger binary neutron stars. The stars, whose magnetic moments are anti-aligned, twist t…
The role of three-dimensional effects on ion injection and acceleration in perpendicular shocks
Luca Orusa, Damiano Caprioli, Lorenzo Sironi +1
Understanding the conditions that enable particle acceleration at non-relativistic collisionless shocks is essential to unveil the origin of cosmic rays. We employ 2D and 3D hybrid…
Synchrotron-cooled plasma distribution in the outer magnetosphere of a neutron star
Mikhail V. Medvedev, Anatoly Spitkovsky, Alexander Philippov
The guiding center formalism is employed to analyze the motion of a charged relativistic particle in an inhomogeneous magnetic field, subject to magnetic mirroring and energy loss…
Particle Acceleration in Magnetized Shear-Driven Turbulence
Mingxuan Liu, Mateusz Ruszkowski, Ellen Zweibel +5
Shear flows, ubiquitous in space and astrophysical plasmas, can accelerate particles through turbulence excited by the Kelvin-Helmholtz instability. We present the first numerical…