Electron Bernstein waves driven by electron crescents near the electron diffusion region

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Electron Bernstein waves driven by electron crescents near the electron diffusion region

Li, W. Y. (author): Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen,Chinese Acad Sci, State Key Lab Space Weather, Natl Space Sci Ctr, Beijing 100190, Peoples R China;Macau Univ Sci & Technol, State Key Lab Lunar & Planetary Sci, Macau, Peoples R China

Graham, Daniel B. (author): Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen

Khotyaintsev, Yuri V. (author): Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen

Vaivads, Andris (author): KTH,Rymd- och plasmafysik,KTH Royal Inst Technol, Div Space & Plasma Phys, Sch Elect Engn & Comp Sci, SE-11428 Stockholm, Sweden

André, Mats (author): Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen

Min, K. (author): Chungnam Natl Univ, Dept Astron & Space Sci, Daejeon 34134, South Korea

Liu, K. (author): Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen 518055, Peoples R China

Tang, B. B. (author): Chinese Acad Sci, State Key Lab Space Weather, Natl Space Sci Ctr, Beijing 100190, Peoples R China

Wang, C. (author): Chinese Acad Sci, State Key Lab Space Weather, Natl Space Sci Ctr, Beijing 100190, Peoples R China

Fujimoto, K. (author): Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China

Norgren, C. (author): Univ Bergen, Dept Phys & Technol, N-5020 Bergen, Norway

Toledo-Redondo, S. (author): Univ Toulouse, Inst Rech Astrophys & Planetol, CNRS, UPS,CNES, F-31028 Toulouse, France;Univ Murcia, Dept Electromagnetism & Elect, Murcia 30003, Spain

Lindqvist, Per-Arne (author): KTH,Rymd- och plasmafysik

Ergun, R. E. (author): Univ Colorado, Atmospher & Space Phys Lab, Boulder, CO 80303 USA

Torbert, R. B. (author): Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA

Rager, A. C. (author): Catholic Univ Amer, Washington, DC 20064 USA;NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

Dorelli, J. C. (author): NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

Gershman, D. J. (author): NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA;Univ Maryland, Dept Astron, College Pk, MD 20742 USA

Giles, B. L. (author): NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA,Univ Toulouse, Inst Rech Astrophys & Planetol, CNRS, UPS,CNES, F-31028 Toulouse, France

Lavraud, B. (author): Southwest Res Inst, San Antonio, TX 78238 USA

Plaschke, F. (author): Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria

Magnes, W. (author): Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria

Le Contel, O. (author): Univ Paris Sud, Lab Phys Plasmas, Ecole Polytech, CNRS,Sorbonne Univ,Observ Paris, F-75252 Paris, France

Russell, C. T. (author): Univ Calif Los Angeles, Dept Earth & Space Sci, Los Angeles, CA 90095 USA

Burch, J. L. (author)

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2020-01-09
2020
English.
In: Nature Communications. - : Nature Research. - 2041-1723. ; 11:1

Related links:: https://www.nature.c...; show more...; https://doi.org/10.1...; https://uu.diva-port... (primary) (Raw object); https://urn.kb.se/re...; https://doi.org/10.1...; https://urn.kb.se/re...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

The Magnetospheric Multiscale (MMS) spacecraft encounter an electron diffusion region (EDR) of asymmetric magnetic reconnection at Earth’s magnetopause. The EDR is characterized by agyrotropic electron velocity distributions on both sides of the neutral line. Various types of plasma waves are produced by the magnetic reconnection in and near the EDR. Here we report large-amplitude electron Bernstein waves (EBWs) at the electron-scale boundary of the Hall current reversal. The finite gyroradius effect of the outflow electrons generates the crescent-shaped agyrotropic electron distributions, which drive the EBWs. The EBWs propagate toward the central EDR. The amplitude of the EBWs is sufficiently large to thermalize and diffuse electrons around the EDR. The EBWs contribute to the cross-field diffusion of the electron-scale boundary of the Hall current reversal near the EDR.

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NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Fusion Plasma an ...

Articles in the publication: Nature Communica ...

By the university: Royal Institute of Technology; Uppsala University

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Electron Bernstein waves driven by electron crescents near the electron diffusion region

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