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2012A&A...538A.151S - Astronomy and Astrophysics, volume 538A, 151-151 (2012/2-1)
Metallicities for six nearby open clusters from high-resolution spectra of giant stars. [Fe/H] values for a planet search sample.
SANTOS N.C., LOVIS C., MELENDEZ J., MONTALTO M., NAEF D. and PACE G.
Abstract (from CDS):
We present a study of the stellar parameters and iron abundances of 18 giant stars in six open clusters. The analysis was based on high-resolution and high-S/N spectra obtained with the UVES spectrograph (VLT-UT2). The results complement our previous study where 13 clusters were already analyzed. The total sample of 18 clusters is part of a program to search for planets around giant stars. The results show that the 18 clusters cover a metallicity range between -0.23 and +0.23dex. Together with the derivation of the stellar masses, these metallicities will allow the metallicity and mass effects to be disentangled when analyzing the frequency of planets as a function of these stellar parameters.
Abstract Copyright: ∼
Journal keyword(s): planetary systems - stars: abundances - techniques: spectroscopic - open clusters and associations: general - fundamental parameters stars:
Simbad objects: 41
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