Physics
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....9719283p&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. A12, p. 19,283-19,297.
Physics
104
Current Sheets, Geomagnetic Tail, Larmor Radius, Magnetic Storms, Particle Collisions, Ionospheric Electron Density, Magnetic Anomalies, Magnetic Field Configurations, Pitch (Inclination)
Scientific paper
The particle scattering and current sheet stability features in the geomagnetic tail during the phase of substorm growth were investigated using Tsyganenko's (1989) magnetic field model. In a study of four substorm events which were observed both in the high-altitude nightside tail and in the auroral ionosphere, the model magnetic field was adjusted to each case so as to represent the global field development during the growth phase of the substorms. The model results suggest that the auroral brightenings are connected with processes taking place in the near-earth region inside about 15 earth radii. The results also suggest that there is a connection between the chaotization of the electrons and the auroral brightenings at substorm onset.
Baker Daniel N.
Buechner Joerg
Dyson R. L.
Frank Louis A.
Koskinen Hannu E. J.
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