Abundance Signatures in Halo Stars: Clues to Nucleosynthesis in the First Stars

Details Abundance Signatures in Halo Stars: Clues to Nucleosynthesis in the First Stars Abundance Signatures in Halo Stars: Clues to Nucleosynthesis in the First Stars

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc..990..148c&link_type=abstract

FIRST STARS III: First Stars II Conference. AIP Conference Proceedings, Volume 990, pp. 148-150 (2008).

Computer Science

Galactic Halo, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages, Space-Based Ultraviolet, Optical, And Infrared Telescopes, Abundances, Chemical Composition

Scientific paper

We are using both space-based (Hubble Space Telescope, HST) and ground-based telescopes to make extensive studies of Galactic halo stars. These stars contain the nucleosynthesis products (from the rapid neutron capture process, i.e., the r-process) from the earliest generations of stars - the progenitors of the halo stars. The observed stellar abundance distributions-from the lightest neutron-capture elements, such as Ge, along with some of the heaviest, including Pt-are providing new clues about the earliest Galactic r-process nucleosynthesis. These in turn will help to identify the characteristics and nature of the first stars in the Galaxy.

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