scholarly journals Modified jump conditions for parallel collisionless shocks

2021 ◽  
Vol 28 (8) ◽  
pp. 082107
Author(s):  
Antoine Bret
Keyword(s):  
Jump Conditions ◽  
Collisionless Shocks

scholarly journals Density jump for parallel and perpendicular collisionless shocks

2020 ◽  
Vol 38 (2) ◽  
pp. 114-120 ◽  
Author(s):  
Antoine Bret ◽  
Ramesh Narayan
Keyword(s):  
Shock Front ◽  
Vlasov Equation ◽  
Jump Conditions ◽  
Collisionless Shock ◽  
Density Jump ◽  
Collisionless Shocks ◽  
Binary Collisions ◽  
Parallel Case ◽  
Relativistic Pair

AbstractIn a collisionless shock, there are no binary collisions to isotropize the flow. It is therefore reasonable to ask to which extent the magnetohydrodynamics (MHD) jump conditions apply. Following up on recent works which found a significant departure from MHD in the case of parallel collisionless shocks, we here present a model allowing to compute the density jump for collisionless shocks. Because the departure from MHD eventually stems from a sustained downstream anisotropy that the Vlasov equation alone cannot specify, we hypothesize a kinetic history for the plasma, as it crosses the shock front. For simplicity, we deal with non-relativistic pair plasmas. We treat the cases of parallel and perpendicular shocks. Non-MHD behavior is more pronounced for the parallel case where, according to MHD, the field should not affect the shock at all.

Jump conditions for a radiating relativistic gas

1994 ◽  
Vol 35 (6) ◽  
pp. 2878-2901 ◽  
Author(s):  
G. Alì ◽  
V. Romano
Keyword(s):  
Jump Conditions ◽  
Relativistic Gas
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