The metal-poor end of the Spite plateau. II. Detailed chemical investigation - Observatoire de Paris Access content directly
Journal Articles Astronomy and Astrophysics - A&A Year : 2021

The metal-poor end of the Spite plateau. II. Detailed chemical investigation

Abstract

Context. The study of old, metal-poor stars deepens our knowledge on the early stages of the universe. In particular, the study of these stars gives us a valuable insight into the masses of the first massive stars and their emission of ionising photons. Aims. We present a detailed chemical analysis and determination of the kinematic and orbital properties of a sample of 11 dwarf stars. These are metal-poor stars, and a few of them present a low lithium content. We inspected whether the other elements also present anomalies. Methods. We analysed the high-resolution UVES spectra of a few metal-poor stars using the Turbospectrum code to synthesise spectral lines profiles. This allowed us to derive a detailed chemical analysis of Fe,
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Dates and versions

obspm-03359675 , version 1 (30-09-2021)

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A. Matas Pinto, M. Spite, E. Caffau, P. Bonifacio, L. Sbordone, et al.. The metal-poor end of the Spite plateau. II. Detailed chemical investigation. Astronomy and Astrophysics - A&A, 2021, ⟨10.1051/0004-6361/202141288⟩. ⟨obspm-03359675⟩
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