Physics
Scientific paper
Sep 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jgr....88.7236e&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 88, Sept. 1, 1983, p. 7236-7238. Research supported by the P.E.F. Israel
Physics
1
Error Correcting Codes, Helios 1, Interplanetary Magnetic Fields, Solar Wind Velocity, Magnetic Field Configurations, Magnetic Measurement, Radial Distribution
Scientific paper
Parker's model for the interplanetary magnetic field predicts an r-1 dependence for the azimuthal component. Departures from this relation were indicated in an analysis of a subset of the Helios 1 data. As in a previous analysis of Pioneer 10 data, these departures can be traced to velocity bias. The authors examine the decrease in solar wind speed which occurred as Helios 1 approached the sun and thus simulated a steeper gradient of the azimuthal magnetic field component. A simple linear fit between flow speed and distance from the sun enables the authors to remove from the data most of the velocity bias present. This procedure substantially improves the agreement between Parker's model and the Helios data.
Eyni M.
Steinitz Raphael
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