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

• Type: Article in International Conference Proceedings Book
• Date: 2006

Authors

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

Conference proceedings International

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

Pages: 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

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Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 2