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Energetic Electron ...
Energetic Electron Microinjections Observed by MMS in the Dusk Plasma Sheet and Drift Resonance Interpretation
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- Luo, Zhekai (author)
- Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China.
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- Xie, Lun (author)
- Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China.
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- Fu, Suiyan (author)
- Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China.
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- Pu, Zuyin (author)
- Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China.
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- Xiong, Ying (author)
- Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen, Peoples R China.
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- Zhou, Xuzhi (author)
- Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China.
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- Zong, Qiugang (author)
- Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China.
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- Li, Li (author)
- Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China.
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- Russell, C. T. (author)
- Univ Calif Los Angeles, Los Angeles, CA USA.
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- Ergun, R. E. (author)
- Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA.;Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA.
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- Burch, J. L. (author)
- Southwest Res Inst, San Antonio, TX USA.
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- Blake, J. B. (author)
- Aerosp Corp, Space Sci Applicat Lab, El Segundo, CA 90245 USA.
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- Torbert, R. B. (author)
- Southwest Res Inst, San Antonio, TX USA.;Univ New Hampshire, Durham, NH 03824 USA.
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- Lindqvist, Per-Arne (author)
- KTH,Rymd- och plasmafysik
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Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen, Peoples R China. (creator_code:org_t)
- American Geophysical Union (AGU), 2022
- 2022
- English.
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In: Geophysical Research Letters. - : American Geophysical Union (AGU). - 0094-8276 .- 1944-8007. ; 49:13
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Microinjection phenomena, characterized by dispersive oscillations of electron fluxes at the Pc5 period and bi-directional pitch angle anisotropy, are frequently observed by Magnetospheric Multiscale in the dusk to midnight plasma sheet. In this paper, two such events are analyzed and the features of toroidal mode drift resonance measured meanwhile are shown in detail. The prominent observation is that the fluctuations of the electron flux and the electric field have either -90 degrees or +90 degrees phase difference at the resonant energy, and the phase difference rises as the energy increases. We extend the present theory for drift resonance of toroidal mode wave with only the equatorial moving electrons in a dipole field to include bouncing electrons. The predicted phase differences based on the new theory are consistent well with the observations in the microinjection events. It is thus suggested that drift resonance may act as the forming mechanism for the observed microinjections.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- microinjection
- drift resonance
- toroidal mode
- ULF wave
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Luo, Zhekai
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Xie, Lun
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Fu, Suiyan
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Pu, Zuyin
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Xiong, Ying
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Zhou, Xuzhi
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show more...
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Zong, Qiugang
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Li, Li
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Russell, C. T.
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Ergun, R. E.
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Burch, J. L.
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Blake, J. B.
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Torbert, R. B.
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Lindqvist, Per-A ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Fusion Plasma an ...
- Articles in the publication
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Geophysical Rese ...
- By the university
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Royal Institute of Technology