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Emission line ratios for C III in the sun

โœ Scribed by F. P. Keenan; G. A. Warren


Publisher
Springer
Year
1993
Tongue
English
Weight
373 KB
Volume
146
Category
Article
ISSN
0038-0938

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๐Ÿ“œ SIMILAR VOLUMES


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โœ F. P. Keenan; K. A. Berrington ๐Ÿ“‚ Article ๐Ÿ“… 1985 ๐Ÿ› Springer ๐ŸŒ English โš– 256 KB

The recent twelve-state R-matrix calculations of electron excitation rates in CIII by Berrington are used to derive level populations applicable to the solar transition region. Line ratios R = I(2p 23pc \_ 2s2p 3po)/i(2s2p lpo \_ 2s 2 Iae ) and R 2 = I(2p 2 l se --2s2p lpO)/l(2p23pc \_ 2s2p 3po)dedu

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โœ Bhola N. Dwivedi ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› Springer ๐ŸŒ English โš– 336 KB

The density dependence of solar EUV line intensity ratios from Mg VIII, Si VII, S IX and Si IX ions have been used to determine electron densities in the quiet Sun and coronal holes. The line intensity values have been computed using a model atmosphere of Kopp and Orrall (1976) in order to emphasize