 |
| Titel |
Relativistic surfatron process for Landau resonant electrons in radiation belts |
| VerfasserIn |
A. Osmane, A. M. Hamza |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1023-5809
|
| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 21, no. 1 ; Nr. 21, no. 1 (2014-01-16), S.115-125 |
| Datensatznummer |
250120878
|
| Publikation (Nr.) |
 copernicus.org/npg-21-115-2014.pdf |
|
|
|
|
|
| Zusammenfassung |
| Recent theoretical studies of the nonlinear wave-particle
interactions for relativistic particles have shown that Landau resonant
orbits could be efficiently accelerated along the mean background magnetic
field for propagation angles θ in close proximity to a critical
propagation θc associated with a Hopf–Hopf bifurcation
condition. In this report, we extend previous studies to reach greater
modeling capacities for the study of electrons in radiation belts by
including longitudinal wave effects and inhomogeneous magnetic fields. We
find that even though both effects can limit the surfatron acceleration of
electrons in radiation belts, gains in energy of the order of 100 keV,
taking place on one tenth of a millisecond, are sufficiently strong for the
mechanism to be relevant to radiation belt dynamics. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|