Wave-particle interactions in the equatorial source region of whistler-mode emissions

0357502 - ÚFA 2011 RIV US eng J - Článek v odborném periodiku
Santolík, Ondřej - Gurnett, D. A. - Pickett, J. S. - Grimald, S. - Décréau, P. M. E. - Parrot, M. - Cornilleau-Wehrlin, N. - El-Lemdani Mazouz, F. - Schriver, D. - Meredith, N. P. - Fazakerley, A.
Wave-particle interactions in the equatorial source region of whistler-mode emissions.
Journal of Geophysical Research. Roč. 115, - (2010), A00F16/1-A00F16/13. ISSN 0148-0227
Grant CEP: GA MŠMT(CZ) ME10001; GA ČR GA205/09/1253
Grant ostatní: GA MŠk(CZ) ME 842
Výzkumný záměr: CEZ:AV0Z30420517
Klíčová slova: wave-particle interactions * equatorial region * Cluster spacecraft
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 3.303, rok: 2010

Wave-particle interactions can play a key role in the process of transfer of energy between different electron populations in the outer Van Allen radiation belt. We present a case study of wave-particle interactions in the equatorial source region of whistler-mode emissions. We select measurements of the Cluster spacecraft when these emissions are observed in the form of random hiss with only occasional discrete chorus wave packets, and where the wave propagation properties are very similar to previously analyzed cases of whistler-mode chorus. We observe a positive divergence of the Poynting flux at minima of the magnetic field modulus along the magnetic field lines, indicating the central position of the source.
Trvalý link: http://hdl.handle.net/11104/0195765