Collisionless relaxation of downstream ion distributions in low-Mach number shocks

Collisionless relaxation of downstream ion distributions in low-Mach number shocks

Collisionlessly formed downstream distributions of ions in low-Mach number shocks are studied. General expressions for the asymptotic value of the ion density and pressure are derived for the directly transmitted ions. An analytical approximation for the overshoot strength is suggested for the low-β...

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Veröffentlicht in:Physics of plasmas 2015-07, Vol.22 (7)
Hauptverfasser: Gedalin, M., Friedman, Y., Balikhin, M.
Format: Artikel
Sprache:eng
Schlagworte:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ASYMPTOTIC SOLUTIONS
Damping
DISTRIBUTION
ION DENSITY
Ion density (concentration)
IONS
LANDAU DAMPING
LOW-BETA PLASMA
MACH NUMBER
MAGNETIC FIELDS
OSCILLATIONS
Plasma physics
RELAXATION
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Beschreibung
Zusammenfassung:Collisionlessly formed downstream distributions of ions in low-Mach number shocks are studied. General expressions for the asymptotic value of the ion density and pressure are derived for the directly transmitted ions. An analytical approximation for the overshoot strength is suggested for the low-β case. Spatial damping scale of the downstream magnetic oscillations is estimated.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4926452