Conditions for flare and filament formation in interacting solar active regions

Details Conditions for flare and filament formation in interacting solar active regions Conditions for flare and filament formation in interacting solar active regions

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...244..533s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 244, no. 2, April 1991, p. 533-543. Observatoire de Paris-supported research.

Astronomy and Astrophysics

Astrophysics

20

Photosphere, Solar Energy, Solar Flares, Sunspots, Electric Current, Solar Granulation, Solar Prominences, Solar X-Rays, Stellar Magnetic Fields

Scientific paper

The evolution of two interacting sunspot groups of different ages is traced over a period of three days. The photospheric velocity field is obtained and compared with the general evolution of the region in an attempt to better understand the conditions that lead to flare activity and filament formation. It is shown that the observed photospheric motions can generate dc electric currents, which, in effect, could lead to energy storage.

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