Images of POST flare coronal structures in X-rays

Details Images of POST flare coronal structures in X-rays Images of POST flare coronal structures in X-rays

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986soph..104..187s&link_type=abstract

(CNR, Workshop on Radio Continua during Solar Flares, Duino, Italy, May 27-31, 1985) Solar Physics (ISSN 0038-0938), vol. 104, M

Astronomy and Astrophysics

Astronomy

2

Solar Corona, Solar Flares, Solar X-Rays, Spectral Energy Distribution, Continuous Spectra, Correlation, Imaging Spectrometers, Periodic Variations, Radio Spectra, Spaceborne Astronomy

Scientific paper

Extensive coronal structures related to radio continua and imaged in X-rays of more than 3.5 keV are described. Data obtained by the Hard X-ray Imaging Spectrometer aboard the SMM satellite reveal that variations in X-ray and radio emission take place inside an arch-encircling plasmoid. These variations are caused by a process whereby particles accelerated in the upper part of the plasmoid stream down the magnetic field lines and in effect heat the lower part of the plasmoid. It is noted that this process can explain why particles streaming along the field lines avoid the arch top so that the arch itself is not affected and why variations start only after the plasmoid is formed (several hours after the flare).

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