Collisionless mirror mode trapping
- 1Max-Planck Institut für Extraterrestrische Physik, 85741 Garching, Germany
- 2International Space Science Institute, 3012 Bern, Switzerland
Abstract. We investigate trapping of mirror modes in a magnetic slab. This model is a simplification of a real situation in front of the magnetopause where mirror waves may become trapped in a region close to the magnetopause for tangential discontinuity conditions and an unidentified (hypothetical) boundary deeper in the sheath which we, for simplicity, assume to be another tangential discontinuity. Such magnetic slabs may trap mirror modes selecting a particular perpendicular wave lengths which follows from a quantization condition on the perpendicular wavenumber.