Physics
Scientific paper
Apr 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....95.4333b&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 95, April 1, 1990, p. 4333-4336.
Physics
27
Heliosphere, Meridional Flow, Solar Wind, Vortex Streets, Interplanetary Medium, Magnetohydrodynamics, Voyager 2 Spacecraft
Scientific paper
This paper presents the hypothesis that the periodic meridional (north-south) flow observed by Voyager 2 in the neighborhood of 20-25 AU were produced by a heliospheric vortex street. The separation of the vortices was approximately 6 AU in the radial direction, and the vortices were carried away from the sun at a speed of approximately 425 km/s. This hypothesis can account for the observed + or - 5 degree deflections in the flow with a period of 25.5 days, and it predicts small amplitude fluctuations in the bulk speed with two maxima per solar rotation, which is consistent with observations in 1986.
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