Physics – Plasma Physics
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006jgra..11106104m&link_type=abstract
Journal of Geophysical Research, Volume 111, Issue A6, CiteID A06104
Physics
Plasma Physics
23
Space Plasma Physics: Shock Waves (4455), Space Plasma Physics: Wave/Particle Interactions (2483, 6984), Space Plasma Physics: Wave/Wave Interactions, Solar Physics, Astrophysics, And Astronomy: Energetic Particles (2114), Solar Physics, Astrophysics, And Astronomy: Transition Region
Scientific paper
Microinstabilities excited in the foot of a supercritical perpendicular shock wave are investigated. A two-dimensional full particle simulation with periodic boundary conditions in both directions using the physical ion to electron mass ratio is performed as a proxy for the foot region where incoming and specularly reflected ions overlap. The simulation shows that six types of different instabilities are excited in a time period shorter than ion gyroperiod of the reflected ions. The most dominant instability is the modified two-stream instability, which leads to strong parallel electron heating through a so-called two step instability and to ion phase space holes.
Matsukiyo Shuichi
Scholer Manfred
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