Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...414..928m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 414, no. 2, p. 928-934.
Astronomy and Astrophysics
Astrophysics
9
Chromosphere, Solar Flares, Solar Radiation, Solar Spectra, Electron Beams, Solar Atmosphere, Solar Corona, Solar X-Rays, Stellar Models
Scientific paper
We study a third kernel of the white-light flare of 1982 June 15, which presents little continuum emission, and it is not particularly bright in H-alpha. However, it is the brightest kernel as seen in lines formed in the midchromosphere. We find that the energy requirements to sustain this kernel are similar to the ones required for the white-light kernels, but the energy is deposited higher. We find that these requirements are compatible with the energy deposited by an electron beam with an input energy flux of 2 x 10 exp 8 ergs/sq cm/s, a low-energy cutoff of 45 keV and a spectral index delta = 6.
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