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FORS2/VLT survey of Milky Way globular clusters I. Description of the method for derivation of metal abundances in the optical and application to NGC 6528, NGC 6553, M 71, NGC 6558, NGC 6426, and Terzan 8

Dias, B; Barbuy, Beatriz; Saviane, Ivo; Held, E. V.; Da Costa, Gary; Ortolani, Sergio; Vasquez, S; Gullieuszik, M; Katz, D.

Description

Context. We have observed almost one third of the globular clusters in the Milky Way, targeting distant and/or highly reddened objects, as well as a few reference clusters. A large sample of red giant stars was observed with FORS2 at VLT/ESO at R ~ 2000. The method for deriving stellar parameters is presented with application to six reference clusters.Aims. We aim at deriving the stellar parameters effective temperature, gravity, metallicity, and alpha-element enhancement as well as the radial...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
URI: http://hdl.handle.net/1885/152076
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201423996
Access Rights: Open Access

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