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arXiv · 1812.09866

Radiation-mediated shocks: kinetic processes and transition to collisionless shocks

Evgeny Derishev
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Abstract

We analyze the main features of radiation-mediated shocks at arbitrary shock velocities, both non-relativistic and relativistic. We describe two mechanisms, which may lead to formation of a sharp viscous subshock within otherwise smooth velocity profile at the shock front, even if the radiation pressure in the upstream is overwhelmingly large. These mechanisms are specific to sub-relativistic and relativistic radiation-mediated shocks and set high-velocity shocks apart from their non-relativistic counterparts, which do not develop a subshock if the radiation pressure is high enough. We briefly discuss implications of this finding.

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Evgeny Derishev. 2018-12-24. Radiation-mediated shocks: kinetic processes and transition to collisionless shocks. https://doi.org/10.1134/s106377291812020x

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