Formation of the CL I line at 1351 A in the solar chromosphere
Abstract
The formation of the multiplet containing the Cl I 1351 A line is investigated due to the unusual brightness of this line. It is determined that this line is formed via a fluorescence effect driven by the 1335 A line of C II. Non-LTE calculations including this effect are found to agree with the observed line intensity. It is shown that the 1347 and 1363 A lines of Cl I do not benefit from this effect and they are predicted to be approximately 100 times weaker.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- March 1983
- DOI:
- 10.1086/160835
- Bibcode:
- 1983ApJ...266..882S
- Keywords:
-
- Chlorine;
- Chromosphere;
- Line Spectra;
- Solar Atmosphere;
- Solar Spectra;
- Ultraviolet Spectra;
- Fine Structure;
- Fluorescence;
- Solar Flares;
- Solar Physics