✦ LIBER ✦

The solar abundance of thorium and lead

✍ Scribed by Ø. Hauge; H. Sørli

Publisher: Springer
Year: 1973
Tongue: English
Weight: 358 KB
Volume: 30
Category: Article
ISSN: 0038-0938
DOI: 10.1007/bf00152661

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✦ Synopsis

Two new Th ix lines have been identified in the spectrum of the solar photosphere. The abundance derived from these lines together with the previously known Th Ix line at 4019 A, is log eTh = 0.85 • 0.20 in the log ea --12.00 scale. Analysis of three Pb I lines in the photospheric spectrum resulted in an abundance of log ePb = 1.90 4-0.10. The solar Th/Pb ratio is: + 0.09 eTh/ePb = 0.09 _ 0.05"

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