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A study of mirror waves generated downstream of a quasi-perpendicular shock

Journal Article · · Journal of Geophysical Research; (United States)
; ;  [1];  [2]
  1. Univ. of Maryland, College Park (United States)
  2. Univ. of Alaska, Fairbanks (United States)
A large ion temperature anisotropy (T{sub i {perpendicular}}/T{sub i {parallel}} {approximately} 2-3), which may lead to the generation of mirror waves, is found to exist downstream of a quasi-perpendicular shock simulated by a one-dimensional hybrid code. In the case of the Earth's bow shock, large amplitude ({delta}B {approximately} B{sub 0}) mirror waves are found to develop approximately 0.5-1 R{sub E} (Earth radius) downstream of the shock ramp. It is found that the instability criterion for mirror waves in the downstream region is satisfied for shocks with a large Alfven Mach number (M{sub A} {approx gt} 3).
DOE Contract Number:
FG06-86ER13530
OSTI ID:
6050604
Journal Information:
Journal of Geophysical Research; (United States), Journal Name: Journal of Geophysical Research; (United States) Vol. 93:A1; ISSN 0148-0227; ISSN JGREA
Country of Publication:
United States
Language:
English