Isotopes of samarium in the sun

Details Isotopes of samarium in the sun Isotopes of samarium in the sun

May 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975soph...42...17e&link_type=abstract

Solar Physics, vol. 42, May 1975, p. 17-20.

Physics

7

Hyperfine Structure, Isotope Effect, Line Spectra, Photosphere, Samarium Isotopes, Solar Spectra, Abundance, Solar Atmosphere, Spectral Line Width

Scientific paper

Terrestrial samarium consists of seven isotopes. Some spectral lines from Sm have isotope shifts and hyperfine structures that will modify the profile of the absorption lines in the Fraunhofer spectrum. The photospheric spectrum around the Sm II lines at 4467 and 4519 A has been studied. Although it is impossible to derive the solar abundance of each individual isotope, it is shown that a terrestrial isotopic composition can account for the anomal line width and asymmetry of the observed solar lines. The solar abundance found from the two lines is A(Sm) = 1.54 in the logarithmic A(H) = 12.00 scale.

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