A comparison of theoreticalCIV emission line strengths with active region observations obtained with the Solar EUV Rocket Telescope and Spectrograph (SERTS) |
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| Authors: | F P Keenan R J Thomas W M Neupert E S Conlon V M Burke |
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| Institution: | (1) Department of Pure and Applied Physics, The Queen's University of Belfast, BT7 1NN Belfast, N. Ireland;(2) Laboratory for Astronomy and Solar Physics, NASA/Goddard Space Flight Center, 20771 Greenbelt, MD, U.S.A.;(3) Department of Applied Mathematics and Theoretical Physics, The Queen's University of Belfast, BT7 1NN Belfast, N. Ireland |
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| Abstract: | Theoretical line ratios involving 2s
2
S - 3p
2
P, 2p
2
P - 3s
2
S, and 2p
2
S - 3d
2
D transitions inCiv between 312 and 420 Å are presented. A comparison of these with solar active region observational data obtained during a rocket flight by the Solar EUV Rocket Telescope and Spectrograph (SERTS) reveals good agreement between theory and experiment, with discrepancies that average only 22%. This provides experimental support for the accuracy of the atomic data adopted in the line ratio calculations, and also resolves discrepancies found previously when the theoretical results were compared with solar data from the S082A instrument on boardSkylab. The potential usefulness of theCIV line ratios as electron temperature diagnostics for the solar transition region is briefly discussed. |
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