Empirical metallicity-dependent calibrations of effective temperature against colours for dwarfs and giants based on interferometric data

Abstract

We present empirical metallicity-dependent calibrations of effective temperature against colours for dwarfs of luminosity classes IV and V and for giants of luminosity classes II and III, based on a collection from the literature of about two hundred nearby stars with direct effective temperature measurements of better than 2.5 per cent. The calibrations are valid for an effective temperature range 3,100 - 10,000 K for dwarfs of spectral types M5 to A0 and 3,100 - 5,700 K for giants of spectral types K5 to G5. A total of twenty-one colours for dwarfs and eighteen colours for giants of bands of four photometric systems, i.e. the Johnson ($UBV{R}_{\mathrm{J}}{I}_{\mathrm{J}}JHK$), the Cousins ($R_{\mathrm{C}}{I}_{\mathrm{C}}$), the Sloan Digital Sky Survey (SDSS, $gr$) and the Two Micron All Sky Survey (2MASS, $JH{K}_{\mathrm{s}}$), have been calibrated. Restricted by the metallicity range of the current sample, the calibrations are mainly applicable for disk stars ([Fe/H]$\gtrsim -1.0$). The normalized percentage residuals of the calibrations are typically 2.0 and 1.5 per cent for dwarfs and giants, respectively. Some systematic discrepancies at various levels are found between the current scales and those available in the literature (e.g. those based on the infrared flux method IRFM or spectroscopy). Based on the current calibrations, we have re-determined the colours of the Sun. We have also investigated the systematic errors in effective temperatures yielded by the current on-going large scale low- to intermediate-resolution stellar spectroscopic surveys. We show that the calibration of colour ($g-K_{\mathrm{s}}$) presented in the current work provides an invaluable tool for the estimation of stellar effective temperature for those on-going or upcoming surveys.

28 pages, 19 figures, 8 tables, accepted for publication in MNRAS

References in corpus (26)

• A grid of MARCS model atmospheres for late-type stars I. Methods and general properties
• The Dartmouth Stellar Evolution Database
• The Radial Velocity Experiment (RAVE): first data release
• The First Data Release (DR1) of the LAMOST general survey
• New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey
• The SEGUE Stellar Parameter Pipeline. I. Description and Initial Validation Tests
• A new implementation of the infrared flux method using the 2MASS catalogue
• Imaging the Surface of Altair
• The SEGUE Stellar Parameter Pipeline. II. Validation with Galactic Globular and Open Clusters
• Synthetic Stellar Photometry - I. General considerations and new transformations for broad-band systems
• Interferometric Observations of Rapidly Rotating Stars
• The SEGUE Stellar Parameter Pipeline. III. Comparison with High-Resolution Spectroscopy of SDSS/SEGUE Field Stars
• Accurate fundamental parameters for Lower Main Sequence Stars
• The LAMOST Stellar Parameter Pipeline at Peking University --- LSP3
• The SEGUE Stellar Parameter Pipeline. IV. Validation with an Extended Sample of Galactic Globular and Open Clusters
• First Results from the CHARA Array. IV. The Interferometric Radii of Low-Mass Stars
• LAMOST Spectroscopic Survey of the Galactic Anti-centre (LSS-GAC): target selection and the first release of value-added catalogues
• Tests of stellar model atmospheres by optical interferometry: VLTI/VINCI limb-darkening measurements of the M4 giant psi phe
• The radii of the nearby K5V and K7V stars 61 Cyg A & B - CHARA/FLUOR interferometry and CESAM2k modeling
• Eleven Exoplanet Host Star Angular Diameters from the CHARA Array
• A three dimensional extinction map of the Galactic Anticentre from multi-band photometry
• New release of the ELODIE library: Version 3.1
• The radius and mass of the subgiant star bet Hyi from interferometry and asteroseismology
• Tests of stellar model atmospheres by optical interferometry IV: VINCI interferometry and UVES spectroscopy of Menkar
• The Search for Stellar Companions to Exoplanet Host Stars Using the CHARA Array
• Automatic stellar spectral parameterization pipeline for LAMOST survey

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