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Observation of Nonuniform Energy Dissipation in the Electron Diffusion Region of Magnetopause Reconnection

Dong, X. C. (author)
STFC, RAL Space, Didcot, Oxon, England.
Dunlop, M. W. (author)
STFC, RAL Space, Didcot, Oxon, England.;Beihang Univ, Sch Space & Environm, Beijing, Peoples R China.;Minist Ind & Informat Technol, Key Lab Space Environm Monitoring & Informat Proc, Beijing, Peoples R China.
Wang, T. Y. (author)
STFC, RAL Space, Didcot, Oxon, England.
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Zhao, J. S. (author)
Chinese Acad Sci, Key Lab Planetary Sci, Purple Mt Observ, Nanjing, Peoples R China.
Fu, H. S. (author)
Beihang Univ, Sch Space & Environm, Beijing, Peoples R China.;Minist Ind & Informat Technol, Key Lab Space Environm Monitoring & Informat Proc, Beijing, Peoples R China.
Chen, Z. Z. (author)
Beihang Univ, Sch Space & Environm, Beijing, Peoples R China.;Minist Ind & Informat Technol, Key Lab Space Environm Monitoring & Informat Proc, Beijing, Peoples R China.
Russell, C. T. (author)
Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA.
Giles, B. (author)
NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
Ergun, R. (author)
Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA.
Lindqvist, Per-Arne (author)
KTH,Rymd- och plasmafysik
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STFC, RAL Space, Didcot, Oxon, England STFC, RAL Space, Didcot, Oxon, England.;Beihang Univ, Sch Space & Environm, Beijing, Peoples R China.;Minist Ind & Informat Technol, Key Lab Space Environm Monitoring & Informat Proc, Beijing, Peoples R China. (creator_code:org_t)
American Geophysical Union (AGU), 2021
2021
English.
In: Geophysical Research Letters. - : American Geophysical Union (AGU). - 0094-8276 .- 1944-8007. ; 48:13
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • We use Magnetospheric Multiscale (MMS) data to investigate the energy dissipation in a magnetopause reconnection electron diffusion region (EDR) event with moderate guide field. The four MMS spacecraft were separated by about 10 km so that comparative study among spacecraft within the EDR can be implemented. Similar magnetic field and electric current properties at each spacecraft indicate the formation of a quasi-homogeneous magnetic and current structure in the diffusion region. However, we find that the energy dissipations detected by each spacecraft are still different due to the temporal or spatial effect of the out-of-plane reconnection electric field (EM) within the dissipation region. Our study suggests that the nonuniform or unsteady energy dissipation in the reconnection EDR may be a universal process.

Subject headings

NATURVETENSKAP  -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)

Keyword

Diffusion region
intermittent energy dissipation
magnetic reconnection

Publication and Content Type

ref (subject category)
art (subject category)

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