Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979stin...7931115v&link_type=abstract
Unknown
Astronomy and Astrophysics
Astronomy
Astronomical Coordinates, Helios Satellites, Interplanetary Magnetic Fields, Magnetic Field Configurations, Solar System, Polarity, Regions, Solar Rotation, Solar Wind
Scientific paper
Simultaneous observations by Helios-1 and Helios-2 over four solar rotations were used to determine the latitudinal dependence of the polarity of the interplanetary magnetic field within plus or minus 7.23 deg of the solar equator and within 1 AU. The longitudinal and latitudinal positions of the sector boundary crossing are consistent with a warped sector boundary which extended from the sun to 1 AU and was inclined approximately 10 deg with respect to the heliographic equator. This is consistent with simultaneous Pioneer 11 observations, which showed unipolar fields at latitude approximately 16 deg at heliocentric distances greater than 3.5 AU. Two sectors were observed at southern latitudes; however, four sectors were observed at northern latitudes on two rotations, indicating a distortion from planarity of the sectory boundary surface.
Bruno Roberto
Burlaga Leonard Francis
Mariani Franco
Ness Norman F.
Villante Umberto
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