23 citations · 46 across the 4 of their papers we have counts for
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astro-ph.HE2020★ 6 cited
Maximally-hard spectra from diffusive shock-acceleration in pulsar-wind nebulae
Ofir Arad, Assaf Lavi, Uri Keshet
The processes leading to the exceptionally hard radio spectra of pulsar-wind nebulae (PWNe) are not yet understood. Radio photon spectral indices among PWNe from the literatur…
astro-ph.HE2020★ 5 cited
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★ 12 cited
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…