J/AJ/140/1911: Resource Record Summary

Resource Record Summary

Catalog Service:
Astrometric Grid Giant Star Survey. III.

Short name: J/AJ/140/1911 IVOA Identifier: ivo://CDS.VizieR/J/AJ/140/1911 DOI (Digital Object Identifier): 10.26093/cds/vizier.51401911 Publisher: CDS[+]ivo://CDS[Pub. ID] More Info: https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/140/1911 VO Compliance: Level 2: This is a VO-compliant resource.	Status: active Registered: 2012 Aug 07 15:36:30Z
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Description

We present results of high-resolution (~55000) spectral observations of 830 photometrically pre-selected candidate red giants in the magnitude range of V=9-12. We develop a pipeline for automated determination of the stellar atmospheric parameters from these spectra and estimate Teff, logg, [Fe/H], microturbulence velocity, and projected rotational velocities, vsin i, for the stars. The analysis confirms that the candidate selection procedure yielded red giants with very high success rate. We show that most of these stars are G and K giants with slightly subsolar metallicity ([Fe/H]~-0.3dex). An analysis of Mg abundances in the sample results in consistency of the [Mg/Fe] vs [Fe/H] trend with published results.

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