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Sökning: onr:"swepub:oai:DiVA.org:kth-293373" > Effect of the Elect...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005169naa a2200505 4500
001oai:DiVA.org:kth-293373
003SwePub
008210430s2021 | |||||||||||000 ||eng|
009oai:DiVA.org:uu-441973
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2933732 URI
0247 a https://doi.org/10.1029/2020GL0914372 DOI
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4419732 URI
040 a (SwePub)kthd (SwePub)uu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Gao, C. -Hu Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.;Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China.4 aut
2451 0a Effect of the Electric Field on the Agyrotropic Electron Distributions
264 1b AMER GEOPHYSICAL UNION,c 2021
338 a print2 rdacarrier
500 a QC 20210430
520 a We investigate agyrotropic electron distributions from two magnetopause events observed by magnetospheric multiscale (MMS) spacecraft. Agyrotropic electron distributions can be generated by the finite electron gyration at an electron-scale boundary, and the electric field normal to this boundary usually contributes to the electron acceleration to make the agyrotropic distributions more apparent. The effect of the electric field becomes important only when it is sufficiently strong and local, meaning its electrostatic potential is comparable to or larger than the electron temperature, and its width is smaller than the electron thermal gyroradius, so that this electric field can directly accelerate part of the electrons out of the original core to form agyrotropic electron distributions. Also, we reproduce the measured electron "finger" structures from test particle simulations, which can be effectively suppressed by increasing the sampling rate of the electron measurement. Plain Language Summary Agyrotropic electron distributions reveal valuable information of electron dynamics at electron scales, and the generation of these distributions have been extensively studied. In this study, we provide a new possibility to generate agyrotropic electron distributions with a strong localized electric field, which can accelerate part of electrons out of the original electron core to form agyrotropic distributions. As such large-amplitude small-scale electric field fluctuations are frequently observed in turbulent plasma environments, we suggest that more agyrotropic electron distributions can be observed with high temporal resolution measurements.
650 7a NATURVETENSKAPx Fysikx Fusion, plasma och rymdfysik0 (SwePub)103032 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Fusion, Plasma and Space Physics0 (SwePub)103032 hsv//eng
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geofysik0 (SwePub)105052 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geophysics0 (SwePub)105052 hsv//eng
7001 a Tang, B. -Bu Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.4 aut
7001 a Li, W. Y.u Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.4 aut
7001 a Wang, C.u Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.;Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China.4 aut
7001 a Khotyaintsev, Yu, V4 aut
7001 a Graham, Daniel B.u Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen4 aut0 (Swepub:uu)dangr618
7001 a Gershman, D. J.u Univ Maryland, Dept Astron, College Pk, MD 20742 USA.4 aut
7001 a Rager, A. C.u NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.;Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA.4 aut
7001 a Giles, B. L.u NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.4 aut
7001 a Lindqvist, Per-Arneu KTH,Rymd- och plasmafysik,KTH Royal Inst Technol, Sch Elect Engn, Space & Plasma Phys, Stockholm, Sweden.4 aut0 (Swepub:kth)u1yukyk9
7001 a Ergun, R. E.u Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA.4 aut
7001 a Russell, C. T.u Univ Calif Los Angeles, Dept Earth & Space Sci, Los Angeles, CA 90024 USA.4 aut
7001 a Burch, J. L.u Southwest Res Inst, San Antonio, TX USA.4 aut
7001 a Khotyaintsev, Yuri V.u Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen4 aut0 (Swepub:uu)ykh28990
7102 a Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.;Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China.b Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.4 org
7730 t Geophysical Research Lettersd : AMER GEOPHYSICAL UNIONg 48:5q 48:5x 0094-8276x 1944-8007
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-293373
8564 8u https://doi.org/10.1029/2020GL091437
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-441973

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