Journal
GEOPHYSICAL RESEARCH LETTERS
Volume 44, Issue 5, Pages 2096-2104Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1002/2017GL072522
Keywords
magnetic reconnection; magnetopause; magnetosphere
Categories
Funding
- LDRD office at LANL
- NASA [NNX14AL38G, NNH13AW51L, NNX14AC68G]
- DOE [DESC0016278]
- NSF [AGS-1202537, AGS-1543598, AGS-1552142]
- NASA Magnetospheric Multiscale Mission
- NSF GEM award [1405166]
- NASA [NNX14AL38G, 679754, 685427, NNX14AC68G] Funding Source: Federal RePORTER
- Direct For Mathematical & Physical Scien
- Division Of Physics [1337831] Funding Source: National Science Foundation
- Directorate For Geosciences
- Div Atmospheric & Geospace Sciences [1405166] Funding Source: National Science Foundation
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Electron heating and mixing during asymmetric reconnection are studied with a 3-D kinetic simulation that matches plasma parameters from Magnetospheric Multiscale (MMS) spacecraft observations of a magnetopause diffusion region. The mixing and heating are strongly enhanced across the magnetospheric separatrix compared to a 2-D simulation. The transport of particles across the separatrix in 3-D is attributed to lower hybrid drift turbulence excited at the steep density gradient near the magnetopause. In the 3-D simulation (and not the 2-D simulation), the electron temperature parallel to the magnetic field within the mixing layer is significantly higher than its upstream value in agreement with the MMS observations.
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