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Age and helium content of the open cluster NGC 6791 from multiple eclipsing binary members: II. Age dependencies and new insights

Brogaard, Karsten; VandenBerg, Don A.; Bruntt, H; Grundahl, Frank; Frandsen, Soeren; Bedin, L R; Milone, Antonino; Dotter, Aaron; Feiden, Gregory A.; Stetson, Peter B; Sandquist, Eric L; Miglio, A; Stello, Dennis; Jessen-Hansen, J

Description

Context. Models of stellar structure and evolution can be constrained by measuring accurate parameters of detached eclipsing binaries in open clusters. Multiple binary stars provide the means to determine helium abundances in these old stellar systems, and in turn, to improve estimates of their age. Aims. In the first paper of this series, we demonstrated how measurements of multiple eclipsing binaries in the old open cluster NGC 6791 sets tighter constraints on the properties of stellar models...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
URI: http://hdl.handle.net/1885/78191
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201219196

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