Sign variability of the magnetic-field height gradient in the solar flare of July 25, 1981

Details Sign variability of the magnetic-field height gradient in the solar flare of July 25, 1981 Sign variability of the magnetic-field height gradient in the solar flare of July 25, 1981

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986azh....63..814l&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 63, July-Aug. 1986, p. 814-816. In Russian.

Astronomy and Astrophysics

Astronomy

Solar Flares, Solar Magnetic Field, H Beta Line, Solar Spectra, Zeeman Effect

Scientific paper

It is found that the magnetic field gradient in the flare of July 25, 1981 changed its sign with depth not less than 2-3 times. This result was obtained during the investigation of the flare's Zeeman spectrogram which involved the use of magnetosensitive lines located in the far wings of the H-beta line. It is suggested that the oscillating tail left behind by an MHD-soliton propagating in the flare is responsible for this marked sign change.

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