| Issue |
EPL
Volume 84, Number 6, December 2008
|
|
|---|---|---|
| Article Number | 69001 | |
| Number of page(s) | 5 | |
| Section | Geophysics, Astronomy and Astrophysics | |
| DOI | https://doi.org/10.1209/0295-5075/84/69001 | |
| Published online | 12 January 2009 | |
On deformation of electron holes in phase space
1
Department of Geophysics, Munich University - Theresienstr. 41, D-80333 Munich, Germany, EU
2
Department of Physics and Astronomy, Dartmouth College - Hanover, NH 03755, USA
3
Department of Earth and Planetary Sciences, Tokyo University - Tokyo, Japan
4
CETP/CNRS - St. Maur des Fossés Cedex, France, EU
Corresponding author: treumann@issibern.ch
Received:
23
October
2008
Accepted:
19
November
2008
This letter shows that for particularly shaped background particle distributions the momentum exchange between phase space holes and the distribution causes acceleration of the holes along the magnetic field. In the particular case of a non-symmetric ring distribution (ring with loss cone) this acceleration is non-uniform in phase space being weaker at larger perpendicular velocities thus causing the deformation of the hole in phase space.
PACS: 94.30.Aa – Auroral phenomena in magnetosphere / 94.20.wj – Wave/particle interactions / 94.05.Dd – Radiation processes
© EPLA, 2008
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