activity
20052025
most citedThe enigmatic nature of the circumstellar envelope and bow shock surrounding Betelgeuse as revealed by Herschel. I. Evidence of clumps, multiple arcs, and a linear bar-like structure

98 citations · 873 across the 24 of their papers we have counts for

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3 papers · 1 filter

astro-ph.HE2025

Combining PIC and MHD to model particle acceleration in astrophysical shocks

Allard Jan van Marle

When supersonic plasma flows collide, many physical processes contribute to the morphology of the resulting shock. One of these processes is the acceleration of non-thermal ions, w…

astro-ph.HE2020★ 7 cited

On the influence of supra-thermal particle acceleration on the morphology of low-Mach, high- shocks

Allard Jan van Marle

When two galaxy clusters encounter each other, the interaction results in a collisionless shock that is characterized by a low (1-4) sonic Mach number, and a high Alfv{é}nic Mach n…

astro-ph.HE2018★ 49 cited

Proton Acceleration in Weak Quasi-parallel Intracluster Shocks: Injection and Early Acceleration

Ji-Hoon Ha, Dongsu Ryu, Hyesung Kang +1

Collisionless shocks with low sonic Mach numbers, , are expected to accelerate cosmic ray (CR) protons via diffusive shock acceleration (DSA) in the intraclus…