Abstract
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 Å 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.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Candler, C.: 1964, Atomic Spectra and the Vector Model, Hilger and Watts Ltd., London.
Corliss, C. H. and Bozman, W. R. : 1962, Nat. Bur. Std. Monograph, No. 53.
Hauge, Ø.: 1972, Inst. Theor. Astrophys., Oslo, Report No. 35.
Holweger, H.: 1967, Z. Astrophys. 65, 365.
King, A. S.: 1935, Astrophys. J. 82, 140.
Murakawa, K.: 1954, Phys. Rev. 93, 1232.
Striganov, A. R. and Kulazhenkova, N. A.: 1964, Opt. Spectr. (U.S.S.R.) 16, 507.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ekeland, A., Hauge, Ø. Isotopes of samarium in the sun. Sol Phys 42, 17–20 (1975). https://doi.org/10.1007/BF00153279
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00153279