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首页> 外文期刊>Journal of geophysical research >Hot Ion Flows in the Distant Magnetotail: ARTEMIS Observations From Lunar Orbit to similar to-200 R-E
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Hot Ion Flows in the Distant Magnetotail: ARTEMIS Observations From Lunar Orbit to similar to-200 R-E

机译：Hot Ion Flows in the Distant Magnetotail: ARTEMIS Observations From Lunar Orbit to similar to-200 R-E

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abstract_textpPlasma energization in Earth's magnetotail is supported by acceleration processes in (and around) magnetic reconnection regions. Hot plasma flows and strong electromagnetic waves, generated by magnetic energy release during reconnection, transport energy necessary for current system intensification and particle acceleration in the inner magnetosphere. Earth's magnetotail configuration includes two main reconnection regions (X lines): the near-Earth X line, which has been well studied by several multispacecraft missions, and the distant X line, which has been much less investigated. In this paper, we utilize the unique data set gathered by two ARTEMIS spacecraft in 2010 at radial distances between lunar orbit and similar to 200 R-E (Earth radii). We identify an X line at around similar to 80 R-E and collect statistics on hot plasma flows observed around and beyond this distance. Ion spectra within these flows are well fitted by a power law with the exponential tail starting above an energy epsilon(0) similar to 2-5 keV. Assuming that these spectra are originated at the distant X line, we examine the characteristics of the acceleration at the distant tail reconnection region./p/abstract_text

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