Bibcode
Ecuvillon, A.; Israelian, G.; Santos, N. C.; Shchukina, N.; Mayor, M.; Rebolo, R.
Referencia bibliográfica
Chemical Abundances and Mixing in Stars in the Milky Way and its Satellites, ESO ASTROPHYSICS SYMPOSIA. ISBN 978-3-540-34135-2. Springer-Verlag, 2006, p. 50
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2006
Número de citas
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Número de citas referidas
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Descripción
Oxygen abundances of a large number of metal-rich stars, with and
without known planets, were derived from the forbidden line [O I] 6300
Å, the OI 7771-5 Å triplet and from near-UV OH lines.
Non-LTE corrections were calculated and applied to the LTE abundance
results derived from the OI 7771-5 Å 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.