Oxygen in metal-rich stars: Abundances from [O I] 6300, OI 7771-5 and near-UV OH

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2006

Autores

Ecuvillon, A (Autor) Outra; Israelian, G (Autor) Outra; N.C. Santos (Autor) Outra; Shchukina, N (Autor) Outra; Mayor, M (Autor) Outra; Rebolo, R (Autor) Outra

Ata de Conferência Internacional

Título: Chemical Abundances and Mixing in Stars in the Milky Way and Its Satellites

Páginas: 50-+

ESO-Arcetri Workshop on Chemical Abundances and Mixing in Stars in the Milky Way and its Satellites

Castiglione della Pescaia, ITALY, SEP 13-17, 2004

Indexação

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Scopus - 0 Citações

Outras Informações

ID Authenticus: P-007-GBE

DOI: 10.1007/978-3-540-34136-9_17

Abstract (EN): Oxygen abundances of a large number of metal-rich stars, with and without known planets, were derived from the forbidden line [OI] 6300 angstrom, the OI 7771-5 angstrom triplet and from near-UV OH lines. Non-LTE corrections were calculated and applied to the LTE abundance results derived from the OI7771-5 angstrom triplet. Spectral synthesis was performed for several OH lines. Results from different indicators are compared. We study abundance trends in planet host and comparison sample stars. We find for all the indicators that, on average, [O/Fe] clearly decreases with [Fe/H], with significantly negative slopes in all the linear fits.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 2