Physics
Scientific paper
Jun 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.5097w&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 90, June 1, 1985, p. 5097-5116.
Physics
57
Boundary Layers, Energetic Particles, Magnetopause, Space Plasmas, Geomagnetism, International Sun Earth Explorer 1, Lines Of Force, Magnetosheath, Particle Density (Concentration), Plasma Layers, Time Response
Scientific paper
Energetic (approximately equal to or greater than 24 keV) particle three-dimensional distributions are presented, taking into account a dawnside (approximately 0515 LT) and duskside (approximately 1845 LT) traversal of the magnetopause boundary regions during periods of northward magnetosheath magnetic field. The boundary region traversed is identified as the low-latitude boundary layer (LLBL) on the basis of survey plasma data, the energetic particle distributions, and magnetic field behavior. The main features of the energetic particle data for these two passes are discussed. On the basis of an analysis of the obtained data, it is concluded that the dawn and dusk LLBL are on closed geomagnetic field lines. It is found that the plasma sheet is the main source of energetic LLBL particles. The possibility exists that the tailward convecting particles in the LLBL reenter the plasma sheet at some further distance in the tailward direction.
Eastman Timothy E.
Frank Louis A.
Mitchell Donald G.
Williams Jimmy D.
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