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Solar energetic and shock‐accelerated particles observed between 1 and 4 AU by the Kiel Electron Telescope (KET) on board Ulysses
Author(s) -
Wibberenz G.,
Kunow H.,
MüllerMellin R.,
Sierks H.,
Heber B.,
Kallenrode M.B.,
Raviart A.,
Ferrando P.,
Ducros R.
Publication year - 1992
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/92gl00390
Subject(s) - physics , shock (circulatory) , astrophysics , electron , telescope , spacecraft , solar energetic particles , on board , solar wind , astronomy , coronal mass ejection , nuclear physics , plasma , aerospace engineering , medicine , engineering
We present observations of solar energetic particles and shock‐accelerated particles observed by the Kiel Electron Telescope (KET) on board the Ulysses spacecraft in the time interval 26 October 1990 to mid November 1991. Prompt events with diffusive propagation were observed mainly at small radial distances while at larger distances shock‐related events became dominant. Particularly high intensities of high energy electrons and >30 MeV/n nuclei are observed at merged or double shocks. Slowly‐varying populations (SVP) with long time scales neither related to prompt events nor to local shock effects are a new feature at these intermediate distances.