3 papers
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.HE2024
Diffusive shock acceleration in relativistic, oblique shocks
Allard Jan van Marle, Artem Bohdan, Anabella Araudo +2
Cosmic rays are charged particles that are accelerated to relativistic speeds by astrophysical shocks. Numerical models have been successful in confirming the acceleration process…
astro-ph.HE2024
Kinetic simulations of electron-positron induced streaming instability in the context of gamma-ray halos around pulsars
Illya Plotnikov, Allard Jan van Marle, Claire Guépin +2
The possibility of slow diffusion regions as the origin for extended TeV emission halos around some pulsars (such as PSR J0633+1746 and PSR B0656+14) challenges the standard scalin…