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Sources of shocks and compressions in the high‐latitude solar wind: Ulysses
Author(s) -
Phillips J. L.,
Goldstein B. E.,
Gosling J. T.,
Hammond C. M.,
Hoeksema J. T.,
McComas D. J.
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 - 10.1029/95gl02228
Subject(s) - latitude , high latitude , solar wind , geology , atmospheric sciences , coronal hole , low latitude , coronal mass ejection , physics , geodesy , plasma , quantum mechanics
During its southern transit Ulysses sampled the solar wind to −80.2° latitude. Slow streamer belt wind was seen only equatorward of −35°, but its influence extended to much higher latitudes. Reverse shocks bounding the equatorial CIR were seen as far south as −58.2°. High‐latitude compressional waves showed no clear correlation with that CIR. Speed and density patterns show that solar rotational modulation persisted up to 25° poleward of the slow wind. Compressional structures at highest latitudes were probably driven by spatial or temporal variations within the southern coronal hole.