Abstract
We perform a general analysis of the long-wavelength mirror instability in multispecies plasmas with generally non-Maxwellian distributions. The general dispersion relation depends on several moments of the distribution function, in addition to the perpendicular and parallel temperature. A most general condition of the mirror instability is derived that is valid for any gyrotropic distribution functions of the plasma species and any number of species. Deviations of the bi-Maxwellian shape may be favorable for the mirror instability but may also suppress it. The resulting effect is rather sensitive to the details of the distribution function.
Original language | English |
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Journal | Journal of Geophysical Research: Space Physics |
Volume | 107 |
Issue number | A2 |
DOIs | |
State | Published - 1 Jan 2002 |
Keywords
- Anisotropy
- Magnetosheath
- Mirror instability
- Mirror modes
ASJC Scopus subject areas
- Geophysics
- Space and Planetary Science