The GALAH survey: effective temperature calibration from the InfraRed Flux Method in the Gaia system

Abstract

In order to accurately determine stellar properties, knowledge of the effective temperature of stars is vital. We implement Gaia and 2MASS photometry in the InfraRed Flux Method and apply it to over 360,000 stars across different evolutionary stages in the GALAH DR3 survey. We derive colour-effective temperature relations that take into account the effect of metallicity and surface gravity over the range 4000 to 8000 kelvin, from very metal-poor stars to super solar metallicities. The internal uncertainty of these calibrations is of order 40-80 kelvin depending on the colour combination used. Comparison against solar-twins, Gaia benchmark stars and the latest interferometric measurements validates the precision and accuracy of these calibrations from F to early M spectral types. We assess the impact of various sources of uncertainties, including the assumed extinction law, and provide guidelines to use our relations. Robust solar colours are also derived.

arXiv commentMNRAS accepted. Include Gaia solar colours. Colour-effective temperature routines for Gaia DR2 and DR3 system available at https://github.com/casaluca/colte

References in corpus (47)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
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• A grid of MARCS model atmospheres for late-type stars I. Methods and general properties
• A 3D Dust Map Based on Gaia, Pan-STARRS 1 and 2MASS
• Gaia Early Data Release 3: Photometric content and validation
• Gaia Data Release 2: Photometric content and validation
• An absolutely calibrated effective temperature scale from the InfraRed Flux Method
• The GALAH+ Survey: Third Data Release
• Stellar Diameters and Temperatures II. Main Sequence K & M Stars
• The effective temperature scale of FGK stars. II. Teff : color : [Fe/H] calibrations
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• A new implementation of the infrared flux method using the 2MASS catalogue
• On the use of Gaia magnitudes and new tables of bolometric corrections
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• High-precision abundances of elements in solar twin stars: Trends with stellar age and elemental condensation temperature
• Fundamental Properties of Stars using Asteroseismology from Kepler & CoRoT and Interferometry from the CHARA Array
• Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer
• Stellar Diameters and Temperatures I. Main Sequence A, F, & G Stars
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• Interferometric radii of bright Kepler stars with the CHARA Array: θ Cygni and 16 Cygni A and B
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• On OH line formation and oxygen abundances in metal-poor stars
• The TESS-HERMES survey Data Release 1: high-resolution spectroscopy of the TESS southern continuous viewing zone
• Absolute Physical Calibration in the Infrared
• Towards stellar effective temperatures and diameters at one per cent accuracy for future surveys
• The temporal evolution of neutron-capture elements in the Galactic discs
• High-precision stellar abundances of the elements - methods and applications
• Gaia Early Data Release 3: The Galactic anticentre
• The K2-HERMES Survey: Age and Metallicity of the Thick Disc
• HD 98618: A Star Closely Resembling our Sun
• SkyMapper stellar parameters for Galactic Archaeology on a grand-scale
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• The diameter of the CoRoT target HD 49933. Combining the 3D limb darkening, asteroseismology, and interferometry
• The K2-HERMES Survey. I. Planet Candidate Properties from K2 Campaigns 1-3
• Fundamental stellar parameters of benchmark stars from CHARA interferometry. I. Metal-poor stars
• Optical Interferometry of early-type stars with PAVO@CHARA. I. Fundamental stellar properties
• The infrared colors of the Sun
• Precision angular diameters for 16 southern stars with VLTI/PIONIER
• Fundamental properties of red-clump stars from long-baseline H-band interferometry
• On the Red Giant Branch: Ambiguity in the Surface Boundary Condition Leads to ~100 K Uncertainty in Model Effective Temperatures
• The Gaia FGK benchmark stars version 2.1
• Towards reliable uncertainties in IR interferometry: The bootstrap for correlated statistical & systematic errors
• Chemical Abundances Of Open Clusters From High-Resolution Infrared Spectra. II. NGC 752
• Chemical Abundances Of Open Clusters From High-Resolution Infrared Spectra. I. NGC 6940

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