Particle acceleration in tangential discontinuities by lower hybrid waves

Particle acceleration in tangential discontinuities by lower hybrid waves

We consider the role that the lower-hybrid wave turbulence plays in providing the necessary resistivity at collisionless reconnection sights. The mechanism for generating the waves is considered to be the lower-hybrid drift instability. We find that the level of the wave amplitude is sufficient enough to heat and accelerate both electrons and ions.

Particle acceleration by electromagnetic waves.

We consider the symmetry in the interaction of photons and electrons, which has led to a common description of electron and photon accelerations; effects such as photon Landau damping arise naturally from such a treatment. Intense electromagnetic waves can act as a photon mirror to charged particles. The subsequent acceleration is equivalent to the photon pulse accelerating electrons. During th...

Particle Acceleration by Alfvén Waves in the Auroral Zone

Particle Acceleration at High-γ Shock Waves

First-order Fermi acceleration processes at ultrarelativistic (γ ∼ 5-30) shocks are studied with the method of Monte Carlo simulations. The accelerated particle spectra are obtained by integrating the exact particle trajectories in a turbulent magnetic field near the shock. The magnetic field model assumes finite-amplitude perturbations within a wide wavevector range and with a predefined wave ...

Particle acceleration in ultra-relativistic parallel shock waves

Monte-Carlo computations for highly relativistic parallel shock particle acceleration are presented for upstream flow gamma factors, Γ = (1 − V 2 1 /c2)−0.5 with values between 5 and 10. The results show that the spectral shape at the shock depends on whether or not the particle scattering is small angle with δθ < Γ−1 or large angle, which is possible if λ > 2rgΓ 2 where λ is the scattering mea...