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Article Dans Une Revue Journal of Geophysical Research Space Physics Année : 2016

Two types of whistler waves in the hall reconnection region

S. Y. Huang
  • Fonction : Auteur
H.S. Fu
  • Fonction : Auteur
Z. G. Yuan
  • Fonction : Auteur
A. Vaivads
Y. V. Khotyaintsev
  • Fonction : Auteur
Alessandro Retinò
M. Zhou
D. B. Graham
  • Fonction : Auteur
K. Fujimoto
Fouad Sahraoui
X. H. Deng
  • Fonction : Auteur
B. Ni
  • Fonction : Auteur
Y. Pang
  • Fonction : Auteur
S. Y. Fu
  • Fonction : Auteur
D. D. Wang
  • Fonction : Auteur
X. M. Zhou
  • Fonction : Auteur

Résumé

Whistler waves are believed to play an important role during magnetic reconnection. Here we report the near-simultaneous occurrence of two types of the whistler-mode waves in the magnetotail Hall reconnection region. The first type is observed in the magnetic pileup region of downstream and propagates away to downstream along the field lines and is possibly generated by the electron temperature anisotropy at the magnetic equator. The second type, propagating toward the X line, is found around the separatrix region and probably is generated by the electron beam-driven whistler instability or Cerenkov emission from electron phase-space holes. These observations of two different types of whistler waves are consistent with recent kinetic simulations and suggest that the observed whistler waves are a consequence of magnetic reconnection.

Dates et versions

hal-01551971 , version 1 (30-06-2017)

Identifiants

Citer

S. Y. Huang, H.S. Fu, Z. G. Yuan, A. Vaivads, Y. V. Khotyaintsev, et al.. Two types of whistler waves in the hall reconnection region. Journal of Geophysical Research Space Physics, 2016, 121 (7), pp.6639-6646. ⟨10.1002/2016JA022650⟩. ⟨hal-01551971⟩
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