Quantitative characteristics of solar active processes and their relationship with the transit velocity of interplanetary shock waves

Details Quantitative characteristics of solar active processes and their relationship with the transit velocity of interplanetary shock waves Quantitative characteristics of solar active processes and their relationship with the transit velocity of interplanetary shock waves

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994p%26ss...42..575e&link_type=abstract

Planetary and Space Science, vol. 42, no. 7, p. 575-582

Physics

1

Current Sheets, Heliosphere, Propagation Velocity, Shock Wave Interaction, Shock Wave Propagation, Shock Waves, Solar Flares, Solar Prominences, Coronal Loops, Solar Planetary Interactions

Scientific paper

By excluding events with a possible interaction of shock waves caused by nonisolated flare processes, it has been possible to specify the relationsip between a characteristic of the X-ray (gamma = 1-8 A) flare emission, and the transit velocity, associated with the interplanetary shock wave. Also it has been possible to obtain relationships between the size of eruptive filaments outside active regions and the transit velocity of an associated shock wave. In this case the shock velocity decreases with increasing distance of the filament from the centre of the solar disk. For shock waves that propagate the neighbourhood of the heliospheric current sheet (HCS), velocities decrease also with increasing distance alpha of the eruptive filament location from to the HCS when alpha greater than 30 deg.

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