New Rare Earth Element Abundance Distributions for the Sun and Five R-Process-Rich Very Metal-Poor Stars

Access full-text files




Sneden, Christopher
Lawler, James E.
Cowan, John J.
Ivans,, Inese I.
Den Hartog, Elizabeth A.

Journal Title

Journal ISSN

Volume Title



We have derived new abundances of the rare earth elements Pr, Dy, Tm, Yb, and Lu for the solar photosphere and for five very metal-poor, neutron-capture r-process-rich giant stars. The photospheric values for all five elements are in good agreement with meteoritic abundances. For the low-metallicity sample, these abundances have been combined with new Ce abundances from a companion paper, and reconsideration of a few other elements in individual stars, to produce internally consistent Ba, rare earth, and Hf ( 56 <= Z <= 72) element distributions. These have been used in a critical comparison between stellar and solar r-process abundance mixes.



LCSH Subject Headings


Sneden, Christopher, James E. Lawler, John J. Cowan, Inese I. Ivans, and Elizabeth A. Den Hartog. "New rare earth element abundance distributions for the Sun and five r-process-rich very metal-poor stars." The Astrophysical Journal Supplement Series, Vol. 182, No. 1 (May, 2009): 80.