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Chemical homogeneity in Collinder 261 and implications for chemical tagging

De Silva, Gayandhi; Freeman, Kenneth; Asplund, Martin; Bland-Hawthorn, Joss; Bessell, Michael; Collet, Remo

Description

This paper presents abundances for 12 red giants of the old open cluster Collinder 261 based on spectra from the Very Large Telescope UVES. Abundances were derived for Na, Mg, Si, Ca, Mn, Fe, Ni, Zr, and Ba. We find that the cluster has a solar-level metallicity of [Fe/H] = -0.03 dex. However, most α- and s-process elements were found to be enhanced. The star-to-star scatter was consistent with the expected measurement uncertainty for all elements. The observed rms scatter is as follows: Na =...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
URI: http://hdl.handle.net/1885/50026
Source: Astronomical Journal
DOI: 10.1086/511182

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