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On temperature and speed of He ++ and O 6+ ions in the solar wind
Author(s) -
Schmidt W. K. H.,
Rosenbauer H.,
Shelly E. G.,
Geiss J.
Publication year - 1980
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/gl007i009p00697
Subject(s) - ion , solar wind , physics , wind speed , atomic physics , atmospheric sciences , meteorology , nuclear physics , plasma , quantum mechanics
First results on fluid parameters of heavy ions in the solar wind from ISEE‐1 mass spectrometer data are presented. Temperatures and speeds of the He ++ and O 6+ ions have been determined for about 150 hours of data in late 1977. It is found that the temperatures are roughly proportional to atomic mass of the ion species. When temperatures are comparatively low, this proportionality does not hold for H + . At high speeds and high temperatures the minor ions stream somewhat faster than H + , but there is on average practically no difference between speeds of He ++ and O 6+ .