SIMBAD references

2014ApJS..215...19P - Astrophys. J., Suppl. Ser., 215, 19 (2014/December-0)

The APOKASC catalog: an asteroseismic and spectroscopic joint survey of targets in the Kepler fields.

PINSONNEAULT M.H., ELSWORTH Y., EPSTEIN C., HEKKER S., MESZAROS Sz., CHAPLIN W.J., JOHNSON J.A., GARCIA R.A., HOLTZMAN J., MATHUR S., GARCIA PEREZ A., SILVA AGUIRRE V., GIRARDI L., BASU S., SHETRONE M., STELLO D., ALLENDE PRIETO C., AN D., BECK P., BEERS T.C., BIZYAEV D., BLOEMEN S., BOVY J., CUNHA K., DE RIDDER J., FRINCHABOY P.M., GARCIA-HERNANDEZ D.A., GILLILAND R., HARDING P., HEARTY F.R., HUBER D., IVANS I., KALLINGER T., MAJEWSKI S.R., METCALFE T.S., MIGLIO A., MOSSER B., MUNA D., NIDEVER D.L., SCHNEIDER D.P., SERENELLI A., SMITH V.V., TAYAR J., ZAMORA O. and ZASOWSKI G.

Abstract (from CDS):

We present the first APOKASC catalog of spectroscopic and asteroseismic properties of 1916 red giants observed in the Kepler fields. The spectroscopic parameters provided from the Apache Point Observatory Galactic Evolution Experiment project are complemented with asteroseismic surface gravities, masses, radii, and mean densities determined by members of the Kepler Asteroseismology Science Consortium. We assess both random and systematic sources of error and include a discussion of sample selection for giants in the Kepler fields. Total uncertainties in the main catalog properties are of the order of 80 K in Teff, 0.06 dex in [M/H], 0.014 dex in log g, and 12% and 5% in mass and radius, respectively; these reflect a combination of systematic and random errors. Asteroseismic surface gravities are substantially more precise and accurate than spectroscopic ones, and we find good agreement between their mean values and the calibrated spectroscopic surface gravities. There are, however, systematic underlying trends with Teff and log g. Our effective temperature scale is between 0 and 200 K cooler than that expected from the infrared flux method, depending on the adopted extinction map, which provides evidence for a lower value on average than that inferred for the Kepler Input Catalog (KIC). We find a reasonable correspondence between the photometric KIC and spectroscopic APOKASC metallicity scales, with increased dispersion in KIC metallicities as the absolute metal abundance decreases, and offsets in Teffand log g consistent with those derived in the literature. We present mean fitting relations between APOKASC and KIC observables and discuss future prospects, strengths, and limitations of the catalog data.

Abstract Copyright:

Journal keyword(s): catalogs - stars: abundances - stars: fundamental parameters - stars: oscillations, including pulsations - surveys

VizieR on-line data: <Available at CDS (J/ApJS/215/19): table2.dat table3.dat table4.dat table5.dat>

Simbad objects: 2388

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2019.10.18-02:19:18

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