Acceleration of heavy ions by perpendicular collisionless shocks: Impact of the shock front nonstationarity

Electron Acceleration at a Low-mach-number Perpendicular Collisionless Shock

A full particle simulation study is carried out on the electron acceleration at a collisionless, relatively low Alfven Mach number (MA = 5), perpendicular shock. Recent self-consistent hybrid shock simulations have demonstrated that the shock front of perpendicular shocks has a dynamic rippled character along the shock surface of low-Mach-number perpendicular shocks. In this paper, the effect o...

Shock front nonstationarity and ion acceleration in supercritical perpendicular shocks

Ion dynamics in quasi-perpendicular collisionless interplanetary shocks: a case study

*Correspondence: Michael Gedalin, Department of Physics, Ben Gurion University of the Negev, Beer-Sheva 84105, Israel e-mail: [email protected] Interplanetary shocks are believed to play an important role in the acceleration of charged particles in the heliosphere. While the acceleration to high energies proceeds via the diffusive mechanism at the scales exceeding by far the shock width, the in...

Impact of the nonstationarity of a supercritical perpendicular collisionless shock on the dynamics and the energy spectra of pickup ions

Electron acceleration due to high frequency instabilities at supernova remnant shocks

Observations of synchrotron radiation across a wide range of wavelengths provide clear evidence that electrons are accelerated to relativistic energies in supernova remnants (SNRs). However, a viable mechanism for the pre–acceleration of such electrons to mildly relativistic energies has not yet been established. In this paper an electromagnetic particle–in–cell (PIC) code is used to simulate a...