2 papers
astro-ph.HE2020
Diffusive shock acceleration in dimensions
Assaf Lavi, Ofir Arad, Yotam Nagar +1
Collisionless shocks are often studied in two spatial dimensions (2D), to gain insights into the 3D case. We analyze diffusive shock acceleration for an arbitrary number $N\in\math…
astro-ph.HE2019
Diffusive shock-acceleration: breakdown of spatial diffusion and isotropy
Uri Keshet, Ofir Arad, Yuri Lyubarski
We point out that particles accelerated in a non-relativistic shock of compression ratio attain the standard, spectral index only under certain conditions. Prev…