TY - JOUR
T1 - Self-organization of collisionless shocks
T2 - from a laminar profile to a rippled time-dependent structure
AU - Gedalin, Michael
AU - Roytershteyn, Vadim
N1 - Publisher Copyright:
© The Author(s), 2024.
PY - 2024/11/15
Y1 - 2024/11/15
N2 - A collisionless shock structure results from the nonlinear interaction between charged particles and electromagnetic fields. Yet, a collisionless shock is globally governed by the mass, momentum and energy conservation requirements. A stable shock structure must ensure that the fluxes of the conserved quantities are constant on average, and, therefore, is determined by this necessity. Here, we study an observed high upstream temperature high Mach number shock and show that the conservation laws cannot be fulfilled unless the shock is spatially inhomogeneous along the shock front and time-dependent.
AB - A collisionless shock structure results from the nonlinear interaction between charged particles and electromagnetic fields. Yet, a collisionless shock is globally governed by the mass, momentum and energy conservation requirements. A stable shock structure must ensure that the fluxes of the conserved quantities are constant on average, and, therefore, is determined by this necessity. Here, we study an observed high upstream temperature high Mach number shock and show that the conservation laws cannot be fulfilled unless the shock is spatially inhomogeneous along the shock front and time-dependent.
KW - astrophysical plasmas
KW - plasma nonlinear phenomena
KW - space plasma physics
UR - http://www.scopus.com/inward/record.url?scp=85209910471&partnerID=8YFLogxK
U2 - 10.1017/S0022377824001429
DO - 10.1017/S0022377824001429
M3 - Article
AN - SCOPUS:85209910471
SN - 0022-3778
VL - 90
JO - Journal of Plasma Physics
JF - Journal of Plasma Physics
IS - 6
M1 - 905900606
ER -