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Direct Evidence for...
Direct Evidence for Electron Acceleration Within Ion-Scale Flux Rope
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- Zhong, Z. H. (författare)
- Nanchang Univ, Sch Resource Environm & Chem Engn, Nanchang, Jiangxi, Peoples R China;Nanchang Univ, Inst Space Sci & Technol, Nanchang, Jiangxi, Peoples R China
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- Zhou, M. (författare)
- Nanchang Univ, Sch Resource Environm & Chem Engn, Nanchang, Jiangxi, Peoples R China;Nanchang Univ, Inst Space Sci & Technol, Nanchang, Jiangxi, Peoples R China;Nanchang Univ, Sch Sci, Dept Phys, Nanchang, Jiangxi, Peoples R China
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- Tang, R. X. (författare)
- Nanchang Univ, Inst Space Sci & Technol, Nanchang, Jiangxi, Peoples R China
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- Deng, X. H. (författare)
- Nanchang Univ, Sch Resource Environm & Chem Engn, Nanchang, Jiangxi, Peoples R China;Nanchang Univ, Inst Space Sci & Technol, Nanchang, Jiangxi, Peoples R China
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- Turner, D. L. (författare)
- Aerosp Corp, El Segundo, CA 90245 USA
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- Cohen, I. J. (författare)
- Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA
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- Pang, Y. (författare)
- Nanchang Univ, Inst Space Sci & Technol, Nanchang, Jiangxi, Peoples R China
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- Man, H. Y. (författare)
- Nanchang Univ, Inst Space Sci & Technol, Nanchang, Jiangxi, Peoples R China;Nanchang Univ, Sch Sci, Dept Phys, Nanchang, Jiangxi, Peoples R China
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- Russell, C. T. (författare)
- UCLA, Dept Earth Planetary & Space Sci, Los Angeles, CA USA
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- Giles, B. (författare)
- NASA, Goddard Space Flight Ctr, Greenbelt, MD USA
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- Paterson, W. R. (författare)
- NASA, Goddard Space Flight Ctr, Greenbelt, MD USA
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- Khotyaintsev, Yuri V. (författare)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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- Burch, J. L. (författare)
- Southwest Res Inst, San Antonio, TX USA
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(creator_code:org_t)
- AMER GEOPHYSICAL UNION, 2020
- 2020
- Engelska.
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Ingår i: Geophysical Research Letters. - : AMER GEOPHYSICAL UNION. - 0094-8276 .- 1944-8007. ; 47:1
- 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
- Energetic electrons have frequently been observed in small-scale flux ropes. However, whether these energetic electrons were energized directly within the flux rope or not is unknown. In this paper, we present concrete evidence provided by the Magnetospheric Multiscale mission that a secondary flux rope provided strong acceleration for electrons expelled by the reconnection X line. We find that the energetic electron fluxes inside the ion-scale flux rope were larger than those outside the flux rope. Electrons were adiabatically accelerated by betatron and Fermi mechanisms inside the flux rope. The highest energy electrons (>100 keV) were produced by betatron acceleration, whereas Fermi acceleration was unable to accelerate the electrons to high energy probably due to the finite distance of the acceleration region along the field-aligned direction. These results confirm the essential role of ion-scale flux ropes in producing energetic electrons.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Zhong, Z. H.
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Zhou, M.
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Tang, R. X.
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Deng, X. H.
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Turner, D. L.
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Cohen, I. J.
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visa fler...
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Pang, Y.
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Man, H. Y.
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Russell, C. T.
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Giles, B.
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Paterson, W. R.
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Khotyaintsev, Yu ...
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Burch, J. L.
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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Geophysical Rese ...
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Uppsala universitet