Physics
Scientific paper
Oct 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983soph...88..315k&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 88, Oct. 1983, p. 315-327. Research supported by the Koninklijke Nederlandse Akademie van W
Physics
10
Solar Flares, Solar Radio Emission, Solar X-Rays, Microwaves, Plasma Temperature, Solar Magnetic Field, Solar Maximum Mission, Velocity Distribution, X Ray Imagery
Scientific paper
A subflare of importance Sf was observed on June 13, 1980, simultaneously by instruments aboard the Solar Maximum Mission (SMM) and various ground-based observatories. Different kinds of observations are described and compared, with emphasis on the Hard X-ray Imaging Spectrometer images and spectra, and on the one-dimensional microwave images with high time and spatial resolution, obtained with the Westerbork Synthesis Radio Telescope. The fast electrons causing the X-ray and microwave impulsive bursts had a common acceleration source, but the bursts were produced at the opposite footpoints of the loops involved, with microwaves emitted near a sunspot penumbra. The flare (of a 'compact' type) was probably triggered by an emerging flux, and two possible interpretations of this process are briefly discussed.
Allaart Marc
de Jager Cornelis
Kattenberg A.
Schadee Aert
Schrijver J.
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