✦ LIBER ✦

The solar lithium abundance

✍ Scribed by Edith A Müller; Eric Peytremann; Ramiro Reza

Publisher: Springer
Year: 1975
Tongue: English
Weight: 739 KB
Volume: 41
Category: Article
ISSN: 0038-0938
DOI: 10.1007/bf00152955

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✦ Synopsis

The solar abundance of lithium and its isotopic abundance ratio were determined by comparing synthetic spectra with the high quality center-to-limb spectra of the solar lithium feature presented in Paper I by Brault and Mtiller (1974). The following possible effects on the abundance result were considered: deviations from LTE, atmospheric models, blends by molecular and atomic lines, hyperfine structure, large scale velocity fields. It was found that the photospheric lithium abundance is logeL~= 1.0:t=0.1. The greatest uncertainty is due to differences in the atmospheric models. The NLTE abundance result is 0.05 dex smaller than the LTE value. A mean depth of line formation was determined for the Li T 126707.776 ]k line. The lithium isotopic abundance ratio was found to be Li6/LiT~<0.01.

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