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The Ulysses south polar pass: Energetic ion observations
Author(s) -
Sanderson T. R.,
Bothmer V.,
Marsden R. G.,
Trattner K. J.,
Wenzel K.P.,
Balogh A.,
Forsyth R. J.,
Goldstein B. E.
Publication year - 1995
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 - 10.1029/95gl03089
Subject(s) - polar , spacecraft , physics , coronal hole , ion , latitude , rotation (mathematics) , descent (aeronautics) , solar rotation , astronomy , astrophysics , astrobiology , solar physics , atmospheric sciences , solar wind , coronal mass ejection , plasma , meteorology , geometry , quantum mechanics , mathematics
We present here a preliminary analysis of observations of energetic ions during the first polar pass of the Ulysses spacecraft, concentrating mainly on the region where the spacecraft was continually immersed in high speed flow from the polar coronal hole. During the ascent to high latitudes, a single recurrent peak was observed once per solar rotation. From 70°S during ascent to 43°S during descent no major peaks were observed. Thereafter, two peaks per solar rotation were observed.