The evolution of corotating stream fronts near the ecliptic plane in the inner solar system. II - Three-dimensional tilted-dipole fronts

Details The evolution of corotating stream fronts near the ecliptic plane in the inner solar system. II - Three-dimensional tilted-dipole fronts The evolution of corotating stream fronts near the ecliptic plane in the inner solar system. II - Three-dimensional tilted-dipole fronts

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....96.5405p&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 96, April 1, 1991, p. 5405-5420.

Physics

77

Corotation, Ecliptic, Interplanetary Magnetic Fields, Plasma Interactions, Solar System, Magnetic Dipoles, Magnetic Field Configurations, Solar Corona, Solar Wind

Scientific paper

A numerical model is developed that treats the three-dimensional MHD interaction which occurs at interplanetary corotating stream fronts near the heliographic equator during those periods of the solar cycle when the large-scale coronal magnetic structure is in the tilted-dipole configuration. The geometry permits the formation of a local approximation valid over a limited range of heliographic latitudes and longitudes centered about the stream front. It is shown that one component of the spatial orientation of the stream interface is fixed by the implied coronal configuration and that this orientation varies in a systematic and predictable way with heliocentric distance. It is found that the appearance of three-dimensional tilted-dipole interfaces near the sun may differ considerably from the classic two-dimensional structures described previously in the literature. It is shown that magnetic torques should have strong influence on the interface structure near the sun.

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