SIMBAD references

2014A&A...564A.133J - Astronomy and Astrophysics, volume 564A, 133-133 (2014/4-1)

Gaia FGK benchmark stars: Metallicity.

JOFRE P., HEITER U., SOUBIRAN C., BLANCO-CUARESMA S., WORLEY C.C., PANCINO E., CANTAT-GAUDIN T., MAGRINI L., BERGEMANN M., GONZALEZ HERNANDEZ J.I., HILL V., LARDO C., DE LAVERNY P., LIND K., MASSERON T., MONTES D., MUCCIARELLI A., NORDLANDER T., RECIO BLANCO A., SOBECK J., SORDO R., SOUSA S.G., TABERNERO H., VALLENARI A. and VAN ECK S.

Abstract (from CDS):

To calibrate automatic pipelines that determine atmospheric parameters of stars, one needs a sample of stars, or ``benchmark stars'', with well-defined parameters to be used as a reference. We provide detailed documentation of the iron abundance determination of the 34 FGK-type benchmark stars that are selected to be the pillars for calibration of the one billion Gaia stars. They cover a wide range of temperatures, surface gravities, and metallicities. Up to seven different methods were used to analyze an observed spectral library of high resolutions and high signal-to-noise ratios. The metallicity was determined by assuming a value of effective temperature and surface gravity obtained from fundamental relations; that is, these parameters were known a priori and independently from the spectra. We present a set of metallicity values obtained in a homogeneous way for our sample of benchmark stars. In addition to this value, we provide detailed documentation of the associated uncertainties. Finally, we report a value of the metallicity of the cool giant {psi} Phe for the first time.

Abstract Copyright:

Journal keyword(s): standards - techniques: spectroscopic - surveys - stars: fundamental parameters

VizieR on-line data: <Available at CDS (J/A+A/564/A133): stars.dat table6.dat ew.dat abund.dat files/*>

Simbad objects: 36

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2019.09.16-23:23:27

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