Narrow lanes of transverse magnetic field in sunspots

Details Narrow lanes of transverse magnetic field in sunspots Narrow lanes of transverse magnetic field in sunspots

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993natur.363..426z&link_type=abstract

Nature (ISSN 0028-0836), vol. 363, no. 6428, p. 426-428.

Physics

41

Magnetic Field Inversions, Solar Flares, Solar Magnetic Field, Sunspots, Coronal Loops, Magnetic Field Configurations, Magnetic Signatures

Scientific paper

Observations are presented of a large, active sunspot group which show oppositely-directed vertical-field inversions separated by very narrow elongated channels of intense horizontal fields. When newly emerging sunspots move through older magnetic-field configurations, the poles are pushed together and the field lines turn sharply along the inversion line to reconnect with the vertical field some distance away. These observations show that almost all of the larger flares in this region occur in highly convoluted, multiple-channeled horizontal fields with substantial electric current.

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