Energetics and timing of the hard and soft X-ray emissions in white light flares

Details Energetics and timing of the hard and soft X-ray emissions in white light flares Energetics and timing of the hard and soft X-ray emissions in white light flares

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993soph..143..201n&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 143, no. 1, p. 201-204.

Physics

30

Light Curve, Solar Flares, Solar X-Rays, Spectral Emission, Chromosphere, Light Emission, Photosphere, Solar Electrons

Scientific paper

By comparing the light curves in optical, hard X-ray, and soft X-ray wavelengths for eight well-observed flares, we confirm previous results indicating that the white light flare (WLF) is associated with the flare impulsive phase. The WLF emission peaks within seconds after the associated hard X-ray peak, and nearly two minutes before the 1-8 A soft X-ray peak. It is further shown that the peak power in nonthermal electrons above 50 keV is typically an order of magnitude larger, and the power in 1-8 A soft X-rays radiated over 2pi sr, at the time of the WLF peak, is an order of magnitude smaller than the peak WLF power.

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