Abstract
Some energy levels of Sr 87 shows hyperfine splitting which broadens strontium lines in the solar spectrum. By analysis of two faint photospheric Sr i lines of Multiplet No. 3 an upper limit of the relative Sr 87 content (Sr 87/Sr) of 1/4 has been found. The terrestrial value is 0.07–0.075.
The solar abundance of strontium found from the two lines is log ɛ Sr = 2.90 in the log ɛ H = 12.00 scale. Using the solar rubidium abundance recently determined by the author (Hauge, 1972), one obtains ɛ Rb/ɛ Sr = 0.5±0.1. This value is larger than found even in chondrites showing high rubidium content.
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Hauge, Ö. A search for the solar Sr 87 content and the solar Rb/Sr ratio. Sol Phys 26, 276–282 (1972). https://doi.org/10.1007/BF00165268
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DOI: https://doi.org/10.1007/BF00165268