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Interplanetary phenomena associated with very intense geomagnetic storms
Schwenn, R.; Tsurutani, B. T.; Lepping, R. P. +1 more
The dominant interplanetary phenomena that are frequently associated with intense magnetic storms are the interplanetary manifestations of fast coronal mass ejections (CMEs). Two such interplanetary structures, involving an intense and long duration Bs component of the IMF are: the sheath region behind a fast forward interplanetary shoc…
Observations of shock acceleration signatures by Ulysses: the 04:08:16, day147, 1991 UT shock
Sarris, E. T.; Anagnostopoulos, G. C.; Marhavilas, P. K.
We analyze the acceleration signatures of energetic ions (E>50keV) and electrons (E>30keV) observed on day 147, 1991 UT in the vicinity of the surface of a fast-mode hydromagnetic shock, using fine time resolution measurements by the HI-SCALE instrument onboard the Ulysses spacecraft. The observations present strong evidence for the accelera…