期刊
GEOPHYSICAL RESEARCH LETTERS
卷 45, 期 2, 页码 578-584出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2017GL076260
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资金
- National Aeronautics and Space Administration (NASA) Magnetospheric Multiscale (MMS) Mission
- NASA [NNG04EB99C]
- Centre National d'Etudes Spatiales (CNES)
- Centre National de la Recherche Scientifique (CNRS)
We report Magnetospheric Multiscale observations of electron pressure gradient electric fields near a magnetic reconnection diffusion region using a new technique for extracting 7.5 ms electron moments from the Fast Plasma Investigation. We find that the deviation of the perpendicular electron bulk velocity from E x B drift in the interval where the out-of-plane current density is increasing can be explained by the diamagnetic drift. In the interval where the out-of-plane current is transitioning to in-plane current, the electron momentum equation is not satisfied at 7.5 ms resolution.
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