3 papers
astro-ph2005
Particle acceleration in thick parallel shocks with high compression ratio
Joni J. P. Virtanen, Rami Vainio
We report studies on first-order Fermi acceleration in parallel modified shock waves with a large scattering center compression ratio expected from turbulence transmission models.…
astro-ph2005
Stochastic Particle Acceleration in Parallel Relativistic Shocks
Joni J. P. Virtanen, Rami Vainio
We present results of test-particle simulations on both the first- and the second-order Fermi acceleration for relativistic parallel shock waves. Our studies suggest that the role…
astro-ph2004
Stochastic Acceleration in Relativistic Parallel Shocks
Joni J. P. Virtanen, Rami Vainio
(abridged) We present results of test-particle simulations on both the first and the second order Fermi acceleration at relativistic parallel shock waves. We consider two scenarios…