A simulation study of multiple ion wave generation downstream of low Mach number quasiperpendicular shocks

Journal Article · Mon Aug 03 00:00:00 EDT 1992 · Geophysical Research Letters (American Geophysical Union); (United States)

DOI:https://doi.org/10.1029/91GL02776· OSTI ID:7012696

Motschmann, U ^[1]; Raeder, J ^[2]

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1. TU Braunschweig (Germany)
2. Univ. of California, Los Angeles (United States)

The behavior of minor ions just downstream of a low Mach number quasiperpendicular shock is investigated both theoretically and by computer simulations. Because all ions see the same cross shock electric field their deceleration depends on their charge to mass ratio, yielding different downstream velocities. It is shown that these differences in velocity can lead to coherent wave structures in the downstream region of quasiperpendicular shocks with a narrow transition layer. These waves are shown to be multi ion hybrid waves in contrast to mirror waves and ion cyclotron waves. Under favorable conditions these waves should be observable both at interplanetary shocks and at planetary bowshocks.

• OSTI ID: 7012696
• Journal Information: Geophysical Research Letters (American Geophysical Union); (United States), Vol. 19:15; ISSN 0094-8276
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COLLISIONLESS PLASMA
SHOCK WAVES
EARTH MAGNETOSPHERE
ION WAVES
ION TEMPERATURE
ANISOTROPY
ACCELERATION
COMPUTERIZED SIMULATION
CYCLOTRON FREQUENCY
DATA ANALYSIS
EARTH PLANET
ELECTRIC FIELDS
INTERACTIONS
INTERPLANETARY SPACE
IONS
MACH NUMBER
PLANETS
SOLAR WIND
CHARGED PARTICLES
EARTH ATMOSPHERE
PLASMA
PLASMA WAVES
SIMULATION
SOLAR ACTIVITY
SPACE
VELOCITY
661320* - Auroral
Ionospheric
& Magnetospheric Phenomena- (1992-)