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Plasma structure near the low-latitude boundary layer: A rebuttal

Journal Article · · Journal of Geophysical Research; (United States)
DOI:https://doi.org/10.1029/91JA00564· OSTI ID:5222243
 [1]
  1. Max-Planck-Inst. fuer extraterrestriche Physik, Garching (West Germany)
A recent reanalysis of a well-documented interval of plasma and magnetic field data led its authors to offer a new model for the structure of the outer magnetosphere and the magnetosheath on the northern dawnside. On November 6, 1977, ISEE 1 and 2 had observed a series of quasi-periodic pulses of magnetosheath-like plasma on northward oriented magnetic field lines which were originally interpreted as repeated encounters of a pulsed low-latitude boundary layer inside a smooth magnetopause followed by a single outward crossing of the magnetopause. D.G. Sibeck and coworkers reinterpreted the ISEE observations as being due to quasi-periodic magnetopause motion causing the satellites to repeatedly exit the magnetosphere and to observe draped northward magnetosheath magnetic field lines in the plasma depletion layer. Their model is based on qualitative arguments concerning the amount of field line draping in the magnetosheath as well as the behavior of energetic electrons near the magnetopause. It is shown in this paper that both arguments are not in accordance with the available evidence.
OSTI ID:
5222243
Journal Information:
Journal of Geophysical Research; (United States), Journal Name: Journal of Geophysical Research; (United States) Vol. 96:A6; ISSN 0148-0227; ISSN JGREA
Country of Publication:
United States
Language:
English