New Rare Earth Element Abundance Distributions for the Sun and Five r-Process-Rich Very Metal-Poor Stars - Astrophysics > Solar and Stellar AstrophysicsReport as inadecuate




New Rare Earth Element Abundance Distributions for the Sun and Five r-Process-Rich Very Metal-Poor Stars - Astrophysics > Solar and Stellar Astrophysics - Download this document for free, or read online. Document in PDF available to download.

Abstract: We have derived new abundances of the rare-earth elements Pr, Dy, Tm, Yb, andLu for the solar photosphere and for five very metal-poor, neutron-capturer-process-rich giant stars.
The photospheric values for all five elements arein good agreement with meteoritic abundances.
For the low metallicity sample,these abundances have been combined with new Ce abundances from a companionpaper, and reconsideration of a few other elements in individual stars, toproduce internally-consistent Ba, rare-earth, and Hf 56<= Z <= 72 elementdistributions.
These have been used in a critical comparison between stellarand solar r-process abundance mixes.



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


Source: https://arxiv.org/



DOWNLOAD PDF




Related documents