The center-limb behavior of C2, CH, CN, CO, and MgH lines have been analyzed using five photospheric models. A three-stream model developed by G. Elste gave the most satisfactory results, providing evidence for the existence of inhomogeneities in the photospheric layers --2.5 ~< logzs0oo ~< --0.5.
Center-to-limb analysis of the solar oxygen lines
✍ Scribed by Edith A. Müller; Bodo Baschek; Hartmut Holweger
- Publisher
- Springer
- Year
- 1968
- Tongue
- English
- Weight
- 965 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0038-0938
No coin nor oath required. For personal study only.
✦ Synopsis
Several lines of neutral oxygen observed at various positions on the solar disk were used to study the influence of (1) the temperature distribution, (2) the velocity field, and (3) the damping on the line profiles and the abundance of oxygen in the photosphere. Theoretical profiles were calculated on the basis of four different model atmospheres in LTE. It was found that the model proposed by HOLWE6ER (1967) best reproduced the center-to-limb observations of the lines studied. The weighted mean of the oxygen abundance turned out to be logeo = 8.83 on the basis of logea = 12.00.
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