Collisionless Shock 4

[HEDS11-01(Invited)] Electron heating in high Alfvén Mach number collisionless shocks

*Arno Vanthieghem^1,2,3, Vassilis Tsiolis², Anatoly Spitkovsky², Yasushi Todo⁴, Kazuhiro Sekiguchi³, Frederico Fiuza^5,6 (1. Sorbonne Université, Observatoire de Paris, 2. Department of Astrophysical Sciences, Princeton University, 3. Department of Astro-fusion Plasma Physics (AFP), National Institute of Natural Sciences, 4. National Institute for Fusion Science, National Institutes of Natural Sciences, 5. Instituto Superior Técnico, Universidade de Lisboa, 6. High Energy Density Science Division, SLAC National Accelerator Laboratory)

High Alfvén Mach numbers shocks shape the emission in many astrophysical and laboratory environments. The downstream temperature ratio between electrons and ions constitutes one of the most fundamental challenges in their modeling. I will introduce a new theoretical model that accounts for electron heating in an ambipolar-type diffusive process and discuss implications for electron injection.