Disappearing solar filaments and geomagnetic activity

Details Disappearing solar filaments and geomagnetic activity Disappearing solar filaments and geomagnetic activity

May 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986soph..105..191s&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 105, May 1986, p. 191-196.

Physics

2

Geomagnetism, Magnetic Storms, Solar Terrestrial Interactions, Field Strength, Filaments, Proton Energy, Temporal Distribution

Scientific paper

As a sequel to the recent identification of the high-speed stream as the candidate structure in the solar wind at 1 AU that is primarily responsible for the geomagnetic disturbances occasionally noticed after 'disparition brusques' (DBs) of solar filaments (Sastri et al., 1985), it is reported here that the streams, inferred to be recurrent in an earlier study, were consistently preceded by a stream interface, as expected of corotating streams. This observation substantiates the role of corotating streams of coronal hole origin in the apparent link between DBs and geomagnetic activity, and strengthens the view that DBs are not a unique source of geomagnetic activity.

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