Magnetic changes observed in a solar flare

Details Magnetic changes observed in a solar flare Magnetic changes observed in a solar flare

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...276..379m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 276, Jan. 1, 1984, p. 379-390.

Astronomy and Astrophysics

Astrophysics

40

Solar Flares, Solar Magnetic Field, Solar Radiation, Stellar Spectrophotometry, Abundance, Emission Spectra, H Alpha Line, Iron, Magnetic Poles, Microwave Emission, Solar Prominences, Solar Radio Emission, Solar X-Rays

Scientific paper

The authors present observations of a large impulsive flare (1B/M4, 1980 April 10). Observations of the microwave/hard X-ray burst show the time development of the impulsive energy release. Chromospheric (Hα) and photospheric (Fe I λ5324) filtergrams and photospheric (Fe I λ8688) magnetograms, intensitygrams, and velocitygrams show magnetic structure, flare emission, mass motion, and magnetic changes. These observations show that strong flare-wrought magnetic changes in the chromosphere and corona produce observable, sudden, permanent changes in the photospheric magnetic field. The observations also show that one of the changes was initiated by transient brightening in Fe I λ5324 and λ8688 in step with the impulsive energy release and filament eruption.

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