A search for the solar Sr 87 content and the solar Rb/Sr ratio |
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| Authors: | Öivind Hauge |
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| Institution: | (1) Institute of Theoretical Astrophysics, University of Oslo, Oslo, Norway |
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| 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 
Sr = 2.90 in the log
H = 12.00 scale. Using the solar rubidium abundance recently determined by the author (Hauge, 1972), one obtains
Rb/
Sr = 0.5±0.1. This value is larger than found even in chondrites showing high rubidium content. |
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