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The RAVE catalog of stellar elemental abundances: first data release

Boeche, C; Siebert, A; Williams, M; De Jong, RS; Steinmetz, M; Fulbright, JP; Ruchti, GR; ... Zwitter, T; + view all (2011) The RAVE catalog of stellar elemental abundances: first data release. The Astronomical Journal , 142 (6) , Article 193. 10.1088/0004-6256/142/6/193. Green open access

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Abstract

We present chemical elemental abundances for 36,561 stars observed by the RAdial Velocity Experiment (RAVE), an ambitious spectroscopic survey of our Galaxy at Galactic latitudes |b| > 25° and with magnitudes in the range 9 <I DENIS <13. RAVE spectra cover the Ca-triplet region at 8410-8795 Å with resolving power R ~ 7500. This first data release of the RAVE chemical catalog is complementary to the third RAVE data release of radial velocities and stellar parameters, and it contains chemical abundances for the elements Mg, Al, Si, Ca, Ti, Fe, and Ni, with a mean error of ~0.2 dex, as judged from accuracy tests performed on synthetic and real spectra. Abundances are estimated through a dedicated processing pipeline in which the curve of growth of individual lines is obtained from a library of absorption line equivalent widths to construct a model spectrum that is then matched to the observed spectrum via a χ2 minimization technique. We plan to extend this pipeline to include estimates for other elements, such as oxygen and sulfur, in future data releases.

Type: Article
Title: The RAVE catalog of stellar elemental abundances: first data release
Open access status: An open access version is available from UCL Discovery
DOI: 10.1088/0004-6256/142/6/193
Publisher version: https://doi.org/10.1088/0004-6256/142/6/193
Language: English
Additional information: This version is the /version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: catalogs; Galaxy: abundances; Galaxy: evolution; stars: abundances; surveys; techniques: spectroscopic
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics
URI: https://discovery.ucl.ac.uk/id/eprint/10090103
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