Theoretical emission line strengths for the beryllium-like ion Sxiii compared to XUV observations of solar flares |
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| Authors: | F P Keenan S M McCann K G Widing |
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| Institution: | (1) Department of Pure and Applied Physics, The Queen's University of Belfast, BT7 1NN Belfast, N. Ireland;(2) E.O. Hulburt Center for Space Research, Naval Research Laboratory, 20375 Washington, DC, U.S.A. |
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| Abstract: | A comparison of Skylab S082A observations for several solar flares with calculations of the electron temperature sensitive emission line ratio R
1 = I(2s2p
1
P – 2s
2
1
S)/I(2s2p
3
P
1 - 2s
2
1
S) = = I(256.68 Å)/I(491.45 Å) in Be-like SXIII reveals good agreement between theory and experiment, which provides observational support for the accuracy of the adopted atomic data. However, observed values of the electron density sensitive ratio R
2 = I(2s2p
1
P – 2s
2
1
S)/I(2p
2
3
P
2 - 2s2p
3
P
2) = = I(256.68 Å)/I(308.96 Å) all lie below the theoretical high density limit, which is probably due to blending in the 308.96 Å line. |
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| Keywords: | |
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