Frank C. Jones

TL;DR: In this paper, a review of the history and theory of particle acceleration is presented, paying particular attention to theories of parallel shocks which include the backreaction of accelerated particles on the shock structure, and the work that computer simulations, both plasma and Monte Carlo, are playing in revealing how thermal ions interact with shocks.

TL;DR: In this paper, an electron of a given energy moving in a monoenergetic, isotropic radiation field is considered and the energy spectrum of the photons that are scattered by the electron has been calculated both exactly and in a greatly simplied approximate form suitable for astrophysical calculations.

TL;DR: The physical processes involved in diffusion of Galactic cosmic rays in the interstellar medium are addressed in this article, where the effect of wave dissipation has been incorporated in the GALPROP numerical propagation code in order to asses the impact on measurable astrophysical data.

TL;DR: In this article, the shape of the galactic cosmic rays (CR) diffusion coefficient was found to explain the observed peaks of secondary to primary nuclei ratios at a few GeV/n, and the dissipation of waves due to the resonant interaction with energetic particles may terminate the cascade at less than 1.e13 cm.

TL;DR: In this article, Monte Carlo calculations of test particle spectra and acceleration times are presented from first-order Fermi particle acceleration for parallel shocks with arbitrary flow velocities and compression ratios r up to seven, shock velocity u1 up to 0.98c, and injection energies ranging from thermal to highly superthermal.