Characterization of wave-particle interactions in the flux pile-up region of asymmetric reconnection. - Archive ouverte HAL Accéder directement au contenu
Poster De Conférence Année : 2018

Characterization of wave-particle interactions in the flux pile-up region of asymmetric reconnection.

M. R. Argall
  • Fonction : Auteur
K. W. Paulson
  • Fonction : Auteur
N. Ahmadi
H. Matsui
  • Fonction : Auteur
T. W. Leonard
  • Fonction : Auteur
D. L. Turner
  • Fonction : Auteur
R. B. Torbert
  • Fonction : Auteur
Olivier Le Contel
C. T. Russell
  • Fonction : Auteur
W. Magnes
R. J. Strangeway
  • Fonction : Auteur
B. L. Giles
  • Fonction : Auteur
P. A. Lindqvist
  • Fonction : Auteur
R. Ergun

Résumé

We investigate electron whistler wave activity in the flux pile-up region of an asymmetric reconnection event at the magnetopause. The 140Hz waves are right-hand polarized with a wave normal angle of 20 degrees and track the magnetic field strength, consistent with electron whistler waves. Poynting flux direction indicates that the waves were generated at the reconnection site. The waves modulated the flux of 500eV electrons propagating parallel and anti-parallel to the magnetic field, as observed by EDI. Only two of four MMS spacecraft observe similar wave activity, suggesting that the waves are isolated within a narrow flux tube. While it is not possible to use the wave telescope technique, current density produced by 500eV electrons provides a means of estimating the parallel wave vector, k, from a single spacecraft. In addition, we fit the FPI electron parallel energy distribution with a kappa function then use Liouville mapping with 500eV EDI electrons to determine the parallel wave potential, 𝝓, and electric field, E. Combining this with the wave normal angle and Poynting flux direction provides an estimate for the perpendicular components of k and E.
Fichier non déposé

Dates et versions

hal-02860989 , version 1 (08-06-2020)

Identifiants

  • HAL Id : hal-02860989 , version 1

Citer

M. R. Argall, K. W. Paulson, N. Ahmadi, H. Matsui, T. W. Leonard, et al.. Characterization of wave-particle interactions in the flux pile-up region of asymmetric reconnection.. 2018 AGU Fall Meeting, Dec 2018, Washington D.C, United States. pp.SM13B-2842, 2018. ⟨hal-02860989⟩
9 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More