SIMBAD references

2010AJ....140.1911B - Astron. J., 140, 1911-1918 (2010/December-0)

The Space Interferometry Mission Astrometric Grid Giant Star Survey. III. Basic stellar parameters for an extended sample.


Abstract (from CDS):

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, log g, [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] ∼ -0.3 dex). An analysis of Mg abundances in the sample results in consistency of the [Mg/Fe] vs [Fe/H] trend with published results.

Abstract Copyright:

Journal keyword(s): stars: abundances - stars: atmospheres - stars: fundamental parameters - stars: late-type - stars: rotation

VizieR on-line data: <Available at CDS (J/AJ/140/1911): table3.dat table1.dat table2.dat>

Nomenclature: Table 3: GGSS JHHMMSS.s+DDMMSS N=183.

Simbad objects: 840

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