The potassium abundance in the solar photosphere |
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| Authors: | Ramiro De La Reza Edith A. Müller |
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| Affiliation: | (1) Observatoire de Genève, Switzerland |
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| Abstract: | High precision center-limb spectrograms of the K i resonance doublet line at λ 7699 Å 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? K = 5.14±0.10 for the solar abundance of potassium (on the scale of log? H = 12 for Hydrogen). |
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