Physics
Scientific paper
Nov 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984icar...60..332r&link_type=abstract
Icarus (ISSN 0019-1035), vol. 60, Nov. 1984, p. 332-350.
Physics
15
Field Strength, Interplanetary Magnetic Fields, Magnetic Disturbances, Magnetic Flux, Solar Wind, Pioneer Venus Spacecraft
Scientific paper
A new class of disturbance in the interplanetary magnetic field has been discovered. This disturbance consists of an enhancement in the magnetic field strength lasting tens of minutes to hours. The strength of the enhancement is variable ranging up to over double the background field strength. The peak field pressure can be as high as 10 percent of the solar wind dynamic pressure. These events occur randomly with respect to the position of the spacecraft relative to Venus but not randomly with respect to Venus solar ecliptic longitude. There is a significant tendency for these events to cluster near certain ecliptic longitudes. The field distortion is often greater in the direction perpendicular to the solar wind flow rather than along it. These characteristics suggest that the source of the disturbances are weakly outgassing objects, possibly dispersed along their orbits such as in meteor streams.
Arghavani M. R.
Luhmann Janet G.
Russell Christopher T.
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