Computer Science
Scientific paper
Aug 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978ncimc...1..261v&link_type=abstract
Nuovo Cimento C, Serie 1, vol. 1C, July-Aug. 1978, p. 261-274.
Computer Science
Interplanetary Magnetic Fields, Magnetic Field Configurations, Satellite Observation, Solar Wind, Coronal Holes, Explorer 47 Satellite, Helios 1, Histograms, Solar Rotation
Scientific paper
Interplanetary-magnetic-field observations by Helios 1 and IMP 8 have been compared for a period of time (corresponding to four solar rotations) in which the radial and latitudinal separations between spacecraft, respectively, ranged between 0 and 0.69 AU and 0 and 14.5 degrees. The correspondence between macrostructural features is good even when the observing spacecraft are located at opposite sides of the solar equatorial plane. Unipolar regions of the interplanetary magnetic field are confirmed as steady-state, corotating structures and are also mostly consistent with a quite regular extension of the field polarities of the observed coronal holes. There are, however, interesting examples of recurrent unipolar regions which are not associated with the recurrent pattern of high-velocity streams. A comparison of two field enhancements suggests that these structures do not experience significant modifications with the heliocentric distance.
Burlaga Leonard Francis
Mariani Franco
Ness Norman F.
Villante Umberto
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