Solar Flare Acceleration of Solar Wind: Influence of Active Region Magnetic Field

The direction of the photospheric magnetic field at the site of a solar flare is a good predictor of whether the flare will accelerate solar wind plasma. If the field has a southward component, high-speed solar wind plasma is usually observed near the earth about 4 days later. If the field has a nor...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 1981-06, Vol.212 (4502), p.1501-1502
Hauptverfasser: Lundstedt, H., Wilcox, J. M., Scherrer, P. H.
Format: Artikel
Sprache:eng
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Zusammenfassung:The direction of the photospheric magnetic field at the site of a solar flare is a good predictor of whether the flare will accelerate solar wind plasma. If the field has a southward component, high-speed solar wind plasma is usually observed near the earth about 4 days later. If the field has a northward component, such high-speed solar wind is almost never observed. Southward-field flares may then be expected to have much larger terrestrial effects than northward flares.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.212.4502.1501