Formation of the O I resonance triplet and intercombination doublet in the solar chromosphere
Abstract
Spectrum synthesis calculations are presented for the O I resonance triplet at 1304 A and the intercombination doublet at 1358 A for the solar atmosphere and several variants, allowing for triplet fluorescence by the Ly-beta emission of H I. Profiles, synthesized from a seven-level plus continuum O I atom are compared to observations taken with the high-resolution spectrometer on OSO 8. It is found that the O I triplet emission is dominated by the Ly-beta fluorescence and that the agreement between observations and profiles computed with current chromospheric models is much improved over earlier studies.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- August 1982
- DOI:
- 10.1086/160221
- Bibcode:
- 1982ApJ...259..869S
- Keywords:
-
- Atomic Energy Levels;
- Chromosphere;
- Oxygen Spectra;
- Resonance Lines;
- Solar Atmosphere;
- Ultraviolet Astronomy;
- Atmospheric Models;
- H Lines;
- Late Stars;
- Lyman Beta Radiation;
- Photoionization;
- Ultraviolet Spectra;
- Solar Physics