A Comparison of Theoretical CIV Emission Line Strengths with Active Region Observations Obtained with the Solar Extreme Ultraviolet Rocket Telescope and Spectrograph / SERTS
Abstract
Theoretical line ratios involving 2s2S - 3p2P, 2p2P - 3s2S, and 2p2S - 3d2D 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.
- Publication:
-
Solar Physics
- Pub Date:
- March 1993
- DOI:
- 10.1007/BF00667983
- Bibcode:
- 1993SoPh..144...69K
- Keywords:
-
- Electron Transitions;
- Emission Spectra;
- Line Spectra;
- Solar Radiation;
- Solar Spectra;
- Ultraviolet Emission;
- Extreme Ultraviolet Radiation;
- Ultraviolet Spectra;
- Solar Physics;
- Active Region;
- Emission Line;
- Electron Temperature;
- Experimental Support;
- Ratio Calculation