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Article Dans Une Revue Physica Scripta Année : 2008

Extremely metal-poor stars from the SDSS

Résumé

We give a progress report on the activities within the CIFIST Team related to the search for extremely metal-poor (EMP) stars in the Sloan Digital Sky Survey's (SDSS) spectroscopic catalogue. So far, the search has provided 25 candidates with metallicities around or smaller than -3. For 15 candidates, high-resolution spectroscopy with UVES at the VLT has confirmed their EMP status. Work is under way to extend the search to the SDSS's photometric catalogue by augmenting the SDSS photometry and by gauging the capabilities of X-shooter when going to significantly fainter targets.

Dates et versions

hal-03785102 , version 1 (23-09-2022)

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Citer

Hans-Günter Ludwig, Piercarlo Bonifacio, Elisabetta Caffau, Natalie Behara, J. I. González Hernández, et al.. Extremely metal-poor stars from the SDSS. Physica Scripta, 2008, 133, pp.4037. ⟨10.1088/0031-8949/2008/T133/014037⟩. ⟨hal-03785102⟩
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