Physics
Scientific paper
Mar 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jgr....80..917r&link_type=abstract
Journal of Geophysical Research, vol. 80, Mar. 1, 1975, p. 917-928.
Physics
9
Interplanetary Magnetic Fields, Magnetic Field Configurations, Solar Wind Velocity, Explorer Satellites, Latitude, Mariner 5 Space Probe, Polarity, Radial Velocity, Time Response, Velocity Distribution
Scientific paper
The sector structure of the interplanetary magnetic field and the solar wind velocity at the sector boundaries are compared at separations of up to 0.3 AU, 50 deg in heliocentric longitude, and 7 deg in heliographic latitude, using data from Mariner 5 en route to Venus and from the near-earth Explorer 33, 34, and 35 satellites. The polarity pattern of the magnetic sectors is found to be very similar at the two locations, and 18 pairs of corresponding sector boundaries are identified. One-hour averages of solar wind velocities near the boundaries show that the velocities near earth exceed those measured by Mariner 5 by as much as 30%. Two possible explanations of the observed velocity differences are discussed: a preferential acceleration of sector boundaries with distance, possibly caused by stream-stream interactions; and a dependence of the solar wind velocity on heliographic latitude.
Rhodes Elmer J.
Smith Edward. J.
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