Physics – Space Physics
Scientific paper
Apr 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ijrsp..18...44g&link_type=abstract
Indian Journal of Radio and Space Physics (ISSN 0367-8393), vol. 18, April 1989, p. 44-47.
Physics
Space Physics
Current Sheets, Heliosphere, Interplanetary Magnetic Fields, Solar Wind Velocity, Magnetic Moments, Scintillation, Solar Magnetic Field
Scientific paper
The heliolatitudinal variation of average solar wind velocity in IMF sectors of opposite magnetic polarity observed near the earth is investigated assuming (1) a heliomagnetic field with a magnetic quadrupole in addition to a dipole and (2) heliomagnetic latitudinal organization of solar wind velocity. The presence of heliomagnetic quadrupole is found to introduce a north-south asymmetry in the solar wind speed distribution about the heliographic equator depending on the geometry of the heliospheric current sheet. For this system a higher average solar wind velocity can be observed during a solar rotation period in non-dominant IMF sectors for some heliolatitudes where IMF sector structure is observed.
Girish T. E.
Prabhakaran Nayar S. R.
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