Chemical Homogeneity in Collinder 261 and Implications for Chemical Tagging
نویسندگان
چکیده
منابع مشابه
CCD photometry of the old open cluster Collinder 261 ⋆
We present UBVI photometry for the old open cluster Collinder 261. From comparison of the observed colour-magnitude diagrams with simulations based on stellar evolutionary models we derive in a self consistent way reddening, distance, and age of the cluster: E(B−V)=0.25−0.34, (m-M)0=11.7-12.0, and age=7−8 Gyr or 9−11 Gyr, depending on the adopted stellar tracks. The models in better agreement w...
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We present the analysis of high resolution spectra of six red giant stars in the old open cluster Collinder 261. Reddening values for individual stars, derived from the relation between colours and temperatures (deduced from our fully spectroscopic analysis) are consistent with previous determinations based on photometry. For this cluster we derive an iron abundance of [Fe/H] = −0.03 ± 0.03. We...
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ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2007
ISSN: 0004-6256,1538-3881
DOI: 10.1086/511182