A Search for the Solar Sr 87 Content and the Solar Rb/Sr Ratio

Details A Search for the Solar Sr 87 Content and the Solar Rb/Sr Ratio A Search for the Solar Sr 87 Content and the Solar Rb/Sr Ratio

Oct 1972

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1972soph...26..276h&link_type=abstract

Solar Physics, Volume 26, Issue 2, pp.276-282

Physics

10

Scientific paper

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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