Halo Star Abundances and Heavy Element Nucleosynthesis

Details Halo Star Abundances and Heavy Element Nucleosynthesis Halo Star Abundances and Heavy Element Nucleosynthesis

2004-05-21

arxiv.org/abs/astro-ph/0405423v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures; To appear in the Proceedings of the 12th Workshop on Nuclear Astrophysics, eds. W. Hillebrandt and E. Mull

Scientific paper

We present new Hubble Space Telescope (HST) abundance observations of the neutron-capture elements Ge, Zr, Os and Pt in a group of 11 Galactic halo stars, including the well studied r-process rich CS 22892-052 and the r-process poor, bright giant HD 122563. Abundance comparisons indicate that the third r-process peak elements Pt and Os seem to be correlated with Eu (obtained with ground-based observations) in these metal-poor halo stars, suggesting a common origin or site for these three n-capture elements.

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