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Electron Heating by Debye-Scale Turbulence in Guide-Field Reconnection.
Khotyaintsev, Yu V; Graham, D B; Steinvall, K; Alm, L; Vaivads, A; Johlander, A; Norgren, C; Li, W; Divin, A; Fu, H S; Hwang, K-J; Burch, J L; Ahmadi, N; Le Contel, O; Gershman, D J; Russell, C T; Torbert, R B.
Afiliación
  • Khotyaintsev YV; Swedish Institute of Space Physics, Uppsala 75121, Sweden.
  • Graham DB; Swedish Institute of Space Physics, Uppsala 75121, Sweden.
  • Steinvall K; Swedish Institute of Space Physics, Uppsala 75121, Sweden.
  • Alm L; Swedish Institute of Space Physics, Uppsala 75121, Sweden.
  • Vaivads A; Department of Space and Plasma Physics, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm 11428, Sweden.
  • Johlander A; Department of Physics, University of Helsinki, Helsinki 00014, Finland.
  • Norgren C; University of Bergen, Bergen 5007, Norway.
  • Li W; State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China.
  • Divin A; Earth Physics Department, St. Petersburg State University, St. Petersburg 198504, Russia.
  • Fu HS; School of Space and Environment, Beihang University, Beijing 100083, China.
  • Hwang KJ; Southwest Research Institute, San Antonio, Texas 78228, USA.
  • Burch JL; Southwest Research Institute, San Antonio, Texas 78228, USA.
  • Ahmadi N; Laboratory of Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80303, USA.
  • Le Contel O; Laboratoire de Physique des Plasmas, CNRS, Ecole Polytechnique, Sorbonne Université, Université Paris-Sud, and Observatoire de Paris, Paris, F-75252 Paris Cedex 05, France.
  • Gershman DJ; NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA.
  • Russell CT; University of California, Los Angeles, California 90095, USA.
  • Torbert RB; University of New Hampshire, Durham, New Hampshire 03824, USA.
Phys Rev Lett ; 124(4): 045101, 2020 Jan 31.
Article en En | MEDLINE | ID: mdl-32058767
ABSTRACT
We report electrostatic Debye-scale turbulence developing within the diffusion region of asymmetric magnetopause reconnection with a moderate guide field using observations by the Magnetospheric Multiscale mission. We show that Buneman waves and beam modes cause efficient and fast thermalization of the reconnection electron jet by irreversible phase mixing, during which the jet kinetic energy is transferred into thermal energy. Our results show that the reconnection diffusion region in the presence of a moderate guide field is highly turbulent, and that electrostatic turbulence plays an important role in electron heating.
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Texto completo: 1 Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2020 Tipo del documento: Article
Texto completo
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Texto completo: 1 Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2020 Tipo del documento: Article