Lower-Hybrid Drift Waves Driving Electron Nongyrotropic Heating and Vortical Flows in a Magnetic Reconnection Layer.,Physical Review Letters

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Lower-Hybrid Drift Waves Driving Electron Nongyrotropic Heating and Vortical Flows in a Magnetic Reconnection Layer.
Physical Review Letters ( IF 8.1 ) Pub Date : 2020-07-09 , DOI: 10.1103/physrevlett.125.025103
L-J Chen ₁ , S Wang _{1,

2} , O Le Contel ₃ , A Rager ₁ , M Hesse ₄ , J Drake ₂ , J Dorelli ₁ , J Ng _{1,

2} , N Bessho _{1,

2} , D Graham ₅ , Lynn B Wilson ₁ , T Moore ₁ , B Giles ₁ , W Paterson ₁ , B Lavraud ₆ , K Genestreti ₇ , R Nakamura ₈ , Yu V Khotyaintsev ₅ , R E Ergun ₉ , R B Torbert ₇ , J Burch ₁₀ , C Pollock ₁₁ , C T Russell ₁₂ , P-A Lindqvist ₁₃ , L Avanov _{1,

2}

Affiliation

NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA.
University of Maryland, College Park, Maryland 20747, USA.
CNRS/Ecole Polytechnique/Sorbonne Université/Univ. Paris Sud/Observatoire de Paris, Paris F91128, France.
University of Bergen, Bergen 5020, Norway.
Swedish Institute of Space Physics, Uppsala SE-75121, Sweden.
Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse (UPS), CNRS, CNES, Toulouse 31027 Cedex 4, France.
University of New Hampshire, Durham, New Hampshire 03824, USA.
Space Research Institute, Austrian Academy of Sciences, Graz A-8042, Austria.
University of Colorado, Boulder, Colorado 80305, USA.
Southwest Research Institute, San Antonio, Texas 78238, USA.
Denali Scientific, Healy, Alaska 99743, USA.
University of California, Los Angeles, Los Angeles, California 90095, USA.
KTH Royal Institute of Technology, Stockholm SE-11428, Sweden.

We report measurements of lower-hybrid drift waves driving electron heating and vortical flows in an electron-scale reconnection layer under a guide field. Electrons accelerated by the electrostatic potential of the waves exhibit perpendicular and nongyrotropic heating. The vortical flows generate magnetic field perturbations comparable to the guide field magnitude. The measurements reveal a new regime of electron-wave interaction and how this interaction modifies the electron dynamics in the reconnection layer.

中文翻译：

低杂波漂移波在磁重连层中驱动电子非回旋加热和涡流。

我们报告了在引导场下驱动电子加热和涡旋流动的低混合漂移波的测量结果。由波的静电势加速的电子表现出垂直和非回旋加热。涡流产生的磁场扰动可与引导场大小相媲美。这些测量揭示了一种新的电子波相互作用机制，以及这种相互作用如何改变重新连接层中的电子动力学。

更新日期：2020-07-10

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