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An Electron-Scale C...
An Electron-Scale Current Sheet Without Bursty Reconnection Signatures Observed in the Near-Earth Tail
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- Wang, Rongsheng (författare)
- Univ Sci & Technol China, Dept Geophys & Planetary Sci, CAS Key Lab Geospace Environm, Hefei, Anhui, Peoples R China.
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- Lu, Quanming (författare)
- Univ Sci & Technol China, Dept Geophys & Planetary Sci, CAS Key Lab Geospace Environm, Hefei, Anhui, Peoples R China.
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- Nakamura, Rumi (författare)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Baumjohann, Wolfgang (författare)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Huang, Can (författare)
- Univ Sci & Technol China, Dept Geophys & Planetary Sci, CAS Key Lab Geospace Environm, Hefei, Anhui, Peoples R China.
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- Russell, Christopher T. (författare)
- Univ Calif Los Angeles, Earth Planetary & Space Sci, Los Angeles, CA USA.
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- Burch, J. L. (författare)
- Southwest Res Inst, San Antonio, TX USA.
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- Pollock, Craig J. (författare)
- NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
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- Gershman, Dan (författare)
- NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
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- Ergun, R. E. (författare)
- Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA.
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- Wang, Shui (författare)
- Univ Sci & Technol China, Dept Geophys & Planetary Sci, CAS Key Lab Geospace Environm, Hefei, Anhui, Peoples R China.
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- Lindqvist, Per-Arne (författare)
- KTH,Rymd- och plasmafysik
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- Giles, Barbara (författare)
- NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
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Univ Sci & Technol China, Dept Geophys & Planetary Sci, CAS Key Lab Geospace Environm, Hefei, Anhui, Peoples R China Austrian Acad Sci, Space Res Inst, Graz, Austria. (creator_code:org_t)
- AMER GEOPHYSICAL UNION, 2018
- 2018
- Engelska.
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Ingår i: Geophysical Research Letters. - : AMER GEOPHYSICAL UNION. - 0094-8276 .- 1944-8007. ; 45:10, s. 4542-4549
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Observations of a current sheet as thin as the electron scale are extremely rare in the near-Earth magnetotail. By measurement from the novel Magnetospheric Multiscale mission in the near-Earth magnetotail, we identified such an electron-scale current sheet and determined its detailed properties. The electron current sheet was bifurcated, with a half-thickness of nine electron inertial lengths, and was sandwiched between the Hall field. Because of the strong Hall electric field, the super-Alfvenic electron bulk flows were created mainly by the electric field drift, leading to the generation of the strong electron current. Inevitably, a bifurcated current sheet was formed since the Hall electric field was close to zero at the center of the current sheet. Inside the electron current sheet, the electrons were significantly heated while the ion temperature showed no change. The ions kept moving at a low speed, which was not affected by this electron current sheet. The energy dissipation was negligible inside the current sheet. The observations indicate that a thin current sheet, even as thin as electron scale, is not the sufficient condition for triggering bursty reconnection.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Nyckelord
- magnetotail
- current sheet
- magnetic reconnection
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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- Av författaren/redakt...
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Wang, Rongsheng
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Lu, Quanming
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Nakamura, Rumi
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Baumjohann, Wolf ...
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Huang, Can
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Russell, Christo ...
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visa fler...
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Burch, J. L.
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Pollock, Craig J ...
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Gershman, Dan
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Ergun, R. E.
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Wang, Shui
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Lindqvist, Per-A ...
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Giles, Barbara
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