The structure of the dissipation region during asymmetric magnetic reconnection is studied assuming antiparallel magnetic fields in two dimensions. A physics-based prediction for the scaling of the thickness of the dissipation region in collisionless Hall reconnection is presented and confirmed with two-fluid simulations. However, the substructure of the dissipation region in these and addition...

We prove the existence of diffusing solutions in the motion of a charged particle in the presence of ABCmagnetic fields. The equations of motion are modeled by a 3DOF Hamiltonian system depending on two parameters. For small values of these parameters, we obtain a normally hyperbolic invariantmanifold andwe apply the so-called geometric methods for a priori unstable systems developed by A. Dels...

[1] We investigate the plasma environment of comet 67P/Churyumov-Gerasimenko, the target of the European Space Agency’s Rosetta mission. Rosetta will rendezvous with the comet in 2014 at almost 3.5 AU and follow it all the way to and past perihelion at 1.3 AU. During its journey towards the inner solar system the comet’s environment will significantly change. The interaction of the solar wind w...

When assessing the scattering of radiation belt electrons by fast magnetosonic (MS) waves, it is traditionally assumed that waves follow MS/whistler branch cold plasma dispersion relation (CPDR) in magnetohydrodynamics. However, MS are essentially ion Bernstein modes following a distinct kinetic relation. This study calculates wave-induced electron diffusion rates with for first time and compar...

The formation mechanism of the W50/SS433 complex has long been a mystery. We propose new scenario in which SS433 jets themselves form system. carry out magnetohydrodynamics simulations two-side jet propagation using public code CANS+. As found previous studies, when propagating is lighter than surrounding medium, shocked plasma flows back from tip to core. find that morphology light spheroidal ...

In this work, continuum kinetic formulations are employed as a mechanism to include closure physics in an extended magnetohydrodynamics model. Two approaches have been implemented the plasma fluid code NIMROD [Sovinec et al., “Nonlinear with high-order finite elements,” J. Comput. Phys. 195, 355 (2004)] including Chapman–Enskog-like (CEL) formulation and more conventional ?f approach. Ion schem...

Abstract This letter exploits the radial alignment between Parker Solar Probe and BepiColombo in late 2022 February, when both spacecraft were within Mercury’s orbit. allows study of turbulent evolution, namely, change spectral intermittency properties, same plasma parcel during its expansion from 0.11 to 0.33 au, a still unexplored region. The observational analysis solar wind features at two ...

The effect of finite wall thickness on the stability of n=1 resistive wall modes in toroidal plasmas is investigated. A fusion reactor-relevant configuration is examined. The investigation employs a novel ideal-magnetohydrodynamics adaptive shooting code for axisymmetric plasmas, extended to take into account the wall thickness. Although finite wall thickness generally reduces the growth rate o...