Metallicity calibrations for dwarf stars and giants in the Geneva photometric system
arXiv:1705.00883 · doi:10.1093/mnras/stx1077
Abstract
We use the most homogeneous seven-colour photometric system to derive new metallicity calibrations for early A- to K-type stars that cover both, dwarf stars and giants. The calibrations are based on several spectroscopic data sets that were merged to a common scale, and we applied them to open cluster data to obtain an additional proof of the metallicity scale and accuracy. In total, metallicities of 54 open clusters are presented. The accuracy of the calibrations for single stars is in general below 0.1 dex, but for the open cluster sample with mean values based on several stars we find a much better precision, a scatter as low as about 0.03 dex. Furthermore, we combine the new results with another comprehensive photometric data set to present a catalogue of mean metallicities for more than 3000 F and G-type dwarf stars with dex. The list was extended by more than 1200 hotter stars up to about 8500 K (or spectral type A3) by taking advantage of their almost reddening free characteristic in the new metallicity calibrations. These two large samples are well suited as primary or secondary calibrators of other data, and we already identified about 20 spectroscopic data sets that show offsets up to about 0.4 dex.
16 pages, 14 figures, 5 tables, accepted by MNRAS
References in corpus (21)
- Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
- New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey
- Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes
- Basic physical parameters of a selected sample of evolved stars
- A Search for Stars of Very Low Metal Abundance. VI. Detailed Abundances of 313 Metal-Poor Stars
- Precise radial velocities of giant stars. III. Spectroscopic stellar parameters
- The PASTEL catalogue: 2016 version
- The spectroscopic Hertzsprung-Russell diagram
- Stellar parameters and chemical abundances of 223 evolved stars with and without planets
- The Hyades open cluster is chemically inhomogeneous
- The Gaia-ESO Survey: the present-day radial metallicity distribution of the Galactic disc probed by pre-main-sequence clusters
- Metallicities for 13 nearby open clusters from high-resolution spectroscopy of dwarf and giant stars. Stellar metallicity, stellar mass, and giant planets
- Differential Radial Velocities and Stellar Parameters of Nearby Young Stars
- On the metallicity of open clusters I. Photometry
- Atmospheric parameters and chemical properties of red giants in the CoRoT asteroseismology fields
- Spectroscopic Study of the Open Cluster NGC 6811
- Comprehensive abundance analysis of red giants in the open clusters NGC 1342, 1662, 1912, 2354 and 2447
- WIYN Open Cluster Study. LXXII. A uvbyCa Hbeta CCD Analysis of the Metal-Deficient Open Cluster, NGC 2506
- The chemical compositions and evolutionary status of red giants in the open cluster NGC 6940
- Chemical composition of evolved stars in the young open clusters NGC 4609 and NGC 5316
- Heavy elements in old very metal-rich stars
Cited by in corpus (13)
- Direct discovery of the inner exoplanet in the HD206893 system. Evidence for deuterium burning in a planetary-mass companion
- NLTE Chemical abundances in Galactic open and globular clusters
- The Swift/UVOT Stars Survey. III. Photometry and Color-Magnitude Diagrams of 103 Galactic Open Clusters
- Stellar Photospheric Abundances as a Probe of Disks and Planets
- Spectroscopic membership for the populous 300 Myr-old open cluster NGC 3532
- Discovery of a Sirius-like binary system with a very strongly magnetic white dwarf. Binarity among magnetic white dwarfs
- The M dwarf problem: Fe and Ti abundances in a volume-limited sample of M dwarf stars
- EMISSA -- Exploring Millimeter Indicators of Solar-Stellar Activity I. The Initial mm-cm Main Sequence Star Sample
- Catalogue of stars measured in the Geneva seven-colour photometric system
- White dwarf-open cluster associations based on Gaia DR2
- A rotational age for the open cluster NGC 2281
- A High-Resolution Spectroscopic Survey of Directly Imaged Companion Hosts: I. Determination of diagnostic stellar abundances for planet formation and composition
- Precise Physical Parameters, Habitability, and Orbital Stability of Sun-like SB2 Systems: HD 130669, HD 184467, HD 191854, and HD 214222