Physics
Scientific paper
Sep 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987soph..110..317d&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 110, no. 2, 1987, p. 317-326.
Physics
15
Electron Density (Concentration), Millimeter Waves, Plasma-Particle Interactions, Radiant Flux Density, Solar Flares, Spectral Energy Distribution, Bremsstrahlung, Energy Dissipation, Solar Magnetic Field, Solar X-Rays, Synchrotron Radiation
Scientific paper
A solar flare microwave burst complex is discussed which included a major structure consisting of some 13 spikes of 60 ms FWHM each, observed 21 May, 1984 at 90 GHz (3 mm). It was associated with a simultaneous very hard X-ray burst complex. It is suggested that the individual spikes of both bursts were caused by the same electron population: the X-bursts by their bremsstrahlung, and the microwave bursts by their gyrosynchrotron emission. This latter conclusion is based on the evidence that the radio turnover frequency was not greater than 150 GHz. It follows that the emission sources were characterized by an electron density of about 10 to the 11th/cu cm, a temperature of 5 x 10 to the 8th K, and a magnetic field of about 1400-2000 G.
Correia Emilia
de Jager Cornelis
Kaufmann Pierre
Kuijpers Jan
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