Computer Science – Databases
Scientific paper
Mar 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc..990..113f&link_type=abstract
FIRST STARS III: First Stars II Conference. AIP Conference Proceedings, Volume 990, pp. 113-117 (2008).
Computer Science
Databases
Astronomical Catalogs, Atlases, Sky Surveys, Databases, Retrieval Systems, Archives, Etc., Population Ii Stars, Abundances, Chemical Composition, Galactic Halo, Origin, Formation, And Abundances Of The Elements, Star Formation, Origin, Formation, Evolution, Age, And Star Formation
Scientific paper
We present an abundance analysis of HE 1327-2326, currently the most iron-poor star known, based on a newly acquired VLT spectrum. The 1D abundance pattern is corrected for 3D effects. The 3D iron abundance is [Fe/H] = -5.9, while the CNO elements of the star are extremely overabundant [CNO/Fe] ~3 to 4). The cosmologically important element Li is still not detected; the new upper limit is A(Li)<0.6. A new analysis of the medium-resolution data of the sample of bright metal-poor stars from the Hamburg/ESO Survey (HES) was carried out. We are using this sample to obtain clues to the chemical nature of the early Universe by investigating the kinematic properties of the sample. Based on estimated [Fe/H] and [C/Fe], we are also able to use the sample to test a formation mechanism for low-mass metal-poor stars.
Beers Timothy C.
Frebel Anna
Marsteller Brian
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