Physics – Plasma Physics
Scientific paper
Dec 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.201.1155b&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 201, Dec. 1982, p. 1155-1169. Research supported by the Science and Eng
Physics
Plasma Physics
119
Calcium, Helium Ions, Line Spectra, Resonance Lines, Solar Flares, Solar Maximum Mission, Atomic Excitations, Atomic Theory, Ion Recombination, Plasma Physics, Solar Wind
Scientific paper
The atomic theory, developed in earlier papers in this series for iron, has been applied to the spectra from calcium. This includes the production of satellite lines by dielectronic recombination and inner-shell excitation, as well as the production of helium-like spectra by excitation, radiative and dielectronic recombination and through cascades. Two methods are described for fitting observed spectra, to determine the plasma physical parameters. The results are applied to the observations from the soft X-ray Polychromator of the flare on 1980 May 21. The good agreement between computed and observed spectra gives support to the accuracy of the theory presented. Analysis of the time variations shows that the flare is close to steady-state ionization balance throughout.
Antonucci Ester
Bely-Dubau Francoise
Dubau Jacques
Faucher P.
Gabriel Alan H.
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