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The potassium abundance in the solar photosphere

✍ Scribed by Ramiro De La Reza; Edith A. Müller

Book ID
104646268
Publisher
Springer
Year
1975
Tongue
English
Weight
987 KB
Volume
43
Category
Article
ISSN
0038-0938

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✦ Synopsis

High precision center-limb spectrograms of the K I resonance doublet line at 27699 A were used to study the line formation and to determine the abundance of potassium in the solar atmosphere. The LTE assumption is not valid for these lines. Synthetic profiles computed in NLTE reproduce very well the observed center-limb line behaviour and yield log eK--5.14 • for the solar abundance of potassium (on the scale of logen = 12 for Hydrogen).

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✍ E. Biémont; N. Grevesse 📂 Article 📅 1975 🏛 Springer 🌐 English ⚖ 467 KB

A new value of the solar photospheric abundance of iron, independent of line-shape parameters, is derived. Our analysis is based on a study of 40 weak infrared lines (0.85<2<2.5/-0 for which theoretical oscillator strengths (calculated with configuration interactions taken into account) have recentl