Solar flare activity changes and global magnetic field disturbances

Details Solar flare activity changes and global magnetic field disturbances Solar flare activity changes and global magnetic field disturbances

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988baicz..39....8b&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 39, Jan. 1988, p. 8-12.

Astronomy and Astrophysics

Astronomy

4

Magnetic Anomalies, Solar Activity, Solar Flares, Solar Longitude, Solar Magnetic Field, Solar Cycles, Solar Rotation

Scientific paper

Published observational data on solar-flare activity in the period 1965-1980 are analyzed statistically and related to changes in the magnetic active longitudes (MALs) identified and studied by Bumba and Hejna (1986). MALs are long strips of single-polarity fields which may persist for about 8-30 rotations and display internal structure. The data sets employed are briefly characterized, and the results are presented graphically. Flare maxima are found to correlate well with MAL disturbances, especially during the ascending phase of the solar cycle and with MALs of negative polarity. The possible implications of these findings for the interplanetary magnetic field and for theoretical models of flare generation are indicated.

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