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Outstanding questions in magnetospheric plasma physics: The pollenzo view

Stepanova, Marina; Hesse, Michael; Delzanno, Gian Luca +6 more

Based on discussions held at a workshop in Bra-Pollenzo, Italy, this paper elaborates upon 19 outstanding questions of plasma physics in the Earth's magnetosphere. The questions are grouped according to (a) driving processes, (b) radiation belt and ring current issues, (c) auroral physics, (d) internal plasma processes, and (e) magnetosphere-ionos…

On the source region and orientations of nightside auroral arcs

Sergeev, V.; Bondareva, T.; Gilles, D. +1 more

Using large data base of stable auroral arcs observed at Gillam we identified those passes of POES spacecraft which were magnetically conjugate to these arcs. We studied statistically arc locations with respect to the energetic particle isotropy boundaries (IBs), which are the well-known markers of the magnetotail regions. In the dusk and night se…