C-Enhanced Stars in the HERES Survey

Details C-Enhanced Stars in the HERES Survey C-Enhanced Stars in the HERES Survey

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc..990..157l&link_type=abstract

FIRST STARS III: First Stars II Conference. AIP Conference Proceedings, Volume 990, pp. 157-160 (2008).

Computer Science

Databases

Population Ii Stars, Astronomical Catalogs, Atlases, Sky Surveys, Databases, Retrieval Systems, Archives, Etc., Galactic Halo, Abundances, Chemical Composition

Scientific paper

The HERES (Hamburg-ESO R-process Enhanced Stars) survey has targeted over 350 halo stars with a snapshot approach using UVES at VLT, finding 6 new strongly and 35 mildly r-enhanced objects (Barklem et a. 2005). It also yielded observations for a total of 94 C-enhanced stars, which make up the largest sample of this kind of objects observed at high resolution.
We present the analysis of the C-rich stars in the HERES survey, which yielded measurements for C, N, Ba and Eu abundances, discuss the results and the consequences on our understanding of their formation scenarios.

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