Results of the Ulysses fast latitude scan: Magnetic field observations | Zendy

Smith E. J. | Zendy; Balogh A. | Zendy; Burton M. E. | Zendy; Erdös G. | Zendy; Forsyth R. J. | Zendy

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Results of the Ulysses fast latitude scan: Magnetic field observations

Author(s) -

Smith E. J.,

Balogh A.,

Burton M. E.,

Erdös G.,

Forsyth R. 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 - 10.1029/95gl03088

Subject(s) - coronal hole , helmet streamer , heliospheric current sheet , latitude , longitude , physics , current sheet , equator , solar wind , heliosphere , polar , corona (planetary geology) , solar rotation , astronomy , coronal mass ejection , geophysics , magnetic field , solar physics , magnetohydrodynamics , astrobiology , quantum mechanics , venus

The rapid crossing of the solar equatorial region by Ulysses as it returned from the south pole resulted in 7 crossings of the heliospheric current sheet between 10°S and 20°N and 10 distinct solar wind interaction regions between 18°S and 22°N. Both the extent of the current sheet and the latitude interval containing the interaction regions are a factor of ≈ 2 less than were observed by Ulysses when it left the equatorial region in 1993. A map of the current sheet in heliographic latitude and Carrington longitude reveals two folds corresponding to 4 magnetic sectors. The coronal holes associated with the sectors, the interaction regions and high‐speed streams have been identified. Two sectors were associated with a pair of asymmetrically‐placed polar coronal holes whereas the other two sectors coincided with a pair of near‐equatorial coronal holes on opposite sides of the equator.

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