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New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s): Improved astrophysical parameters for the Geneva-Copenhagen Survey

Casagrande, Luca; Schonrich, R; Asplund, Martin; Cassisi, S; Ramirez, I; Melendez, Jorge; Bensby, T; Feltzing, Sofia

Description

We present a re-analysis of the Geneva-Copenhagen survey, which benefits from the infrared flux method to improve the accuracy of the derived stellar effective temperatures and uses the latter to build a consistent and improved metallicity scale. Metallicities are calibrated on high-resolution spectroscopy and checked against four open clusters and a moving group, showing excellent consistency. The new temperature and metallicity scales provide a better match to theoretical isochrones, which...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/78667
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201016276

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