The Gaia FGK Benchmark Stars - High resolution spectral library

Abstract

Context. An increasing number of high resolution stellar spectra is available today thanks to many past and ongoing spectroscopic surveys. Consequently, numerous methods have been developed in order to perform an automatic spectral analysis on a massive amount of data. When reviewing published results, biases arise and they need to be addressed and minimized. Aims. We are providing a homogeneous library with a common set of calibration stars (known as the Gaia FGK Benchmark Stars) that will allow to assess stellar analysis methods and calibrate spectroscopic surveys. Methods. High resolution and signal-to-noise spectra were compiled from different instruments. We developed an automatic process in order to homogenize the observed data and assess the quality of the resulting library. Results. We built a high quality library that will facilitate the assessment of spectral analyses and the calibration of present and future spectroscopic surveys. The automation of the process minimizes the human subjectivity and ensures reproducibility. Additionally, it allows us to quickly adapt the library to specific needs that can arise from future spectroscopic analyses.

accepted for publication in Astronomy and Astrophysics. Language corrections and updated reference parameters

References in corpus (10)

• A grid of MARCS model atmospheres for late-type stars I. Methods and general properties
• The Radial Velocity Experiment (RAVE): first data release
• The SEGUE Stellar Parameter Pipeline. I. Description and Initial Validation Tests
• The SEGUE Stellar Parameter Pipeline. III. Comparison with High-Resolution Spectroscopy of SDSS/SEGUE Field Stars
• Cross-Correlation and Maximum Likelihood Analysis: A New Approach to Combine Cross-Correlation Functions
• APOGEE: The Apache Point Observatory Galactic Evolution Experiment
• Automated derivation of stellar atmospheric parameters and chemical abundances: the MATISSE algorithm
• A large stellar evolution database for population synthesis studies. IV. Integrated properties and spectra
• Velocities from Cross-Correlation: A Guide for Self-Improvement
• SPADES: Stellar Parameters Determination Software

Cited by in corpus (61)

• The Gaia mission
• Determining stellar atmospheric parameters and chemical abundances of FGK stars with iSpec
• The Radial Velocity Experiment (RAVE): Fifth Data Release
• Modern stellar spectroscopy caveats
• Gaia-ESO Survey: The analysis of high-resolution UVES spectra of FGK-type stars
• Atomic data for the Gaia-ESO Survey
• Abundances in the Local Region II: F, G and K Dwarfs and Subgiants
• Atomic and Molecular Data for Optical Stellar Spectroscopy
• The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products
• VLT/FLAMES spectroscopy of red giant branch stars in the Fornax dwarf spheroidal galaxy
• Age dating of an early Milky Way merger via asteroseismology of the naked-eye star $\nu$ Indi
• The radii and limb darkenings of Alpha Centauri A and B - Interferometric measurements with VLTI/PIONIER
• A Comparison of Stellar Elemental Abundance Techniques and Measurements
• Testing the chemical tagging technique with open clusters
• The Gaia-ESO Survey: a new approach to chemically characterising young open clusters
• The Gaia-ESO Survey: calibration strategy
• Benchmark stars for Gaia: fundamental properties of the Population II star HD140283 from interferometric, spectroscopic and photometric data
• Non-LTE Radiative Transfer with Turbospectrum
• The Gaia-ESO Survey: homogenisation of stellar parameters and elemental abundances
• To use or not to use synthetic stellar spectra in population synthesis models?
• OCCASO II. Physical parameters and Fe abundances of Red Clump stars in 18 Open Clusters
• Differential abundances of open clusters and their tidal tails: chemical tagging and chemical homogeneity
• Host star metallicity of directly imaged wide-orbit planets: implications for planet formation
• The Gaia-ESO Survey: A new approach to chemically characterising young open clusters II. Abundances of the neutron-capture elements Cu, Sr, Y, Zr, Ba, La, and Ce
• Distant Relatives: The Chemical Homogeneity of Comoving Pairs Identified in Gaia
• Observational constraints on the origin of the elements. VII. NLTE analysis of Y II lines in spectra of cool stars and implications for Y as a Galactic chemical clock
• Modeling the Echelle Spectra Continuum with Alpha Shapes and Local Regression Fitting
• OCCASO V. Chemical-abundance trends with Galactocentric distance and age
• Atmospheric stellar parameters for large surveys using FASMA, a new spectral synthesis package
• MELCHIORS: The Mercator Library of High Resolution Stellar Spectroscopy
• WIYN Open Cluster Study: The Old Open Cluster, NGC 188, and a Re-evaluation of Lithium-Richness Among Red Giants
• Method to Estimate the Effective Temperatures of Late-Type Giants using Line-Depth Ratios in the Wavelength Range 0.97-1.32$\mu$m
• Effective temperatures of red supergiants estimated from line-depth ratios of iron lines in the YJ bands, 0.97--1.32 micron
• Three Hot-Jupiters on the upper edge of the mass-radius distribution: WASP-177, WASP-181 and WASP-183
• Stellar Parameters and Chemical Abundances Estimated from LAMOST-II DR8 MRS based on Cycle-StarNet
• The White Dwarf Binary Pathways Survey -- IX. Three long period white dwarf plus subgiant binaries
• A comparison between X-shooter spectra and PHOENIX models across the HR-diagram
• Far beyond the Sun: I. The beating magnetic heart in Horologium
• SPECIES II. Stellar parameters of the EXPRESS program giant star sample
• Three-dimensional hydrodynamical CO5BOLD model atmospheres of red giant stars VI. First chromosphere model of a late-type giant
• OCCASO IV. Radial Velocities and Open Cluster Kinematics
• Enhancement of Double-Close-Binary Quadruples
• The Gaia-ESO Survey: Preparing the ground for 4MOST & WEAVE galactic surveys. Chemical evolution of lithium with machine learning
• A Comparison of the Chemical Composition of Main Sequence and Giant Stars in the Open Cluster NCC 752
• Fundamental effective temperature measurements for eclipsing binary stars -- III. SPIRou near-infrared spectroscopy and CHEOPS photometry of the benchmark G0V star EBLM J0113+31
• Exploring the dependence of chemical traits on metallicity: chemical trends for red giant stars with asteroseismic ages
• Physical properties of the eclipsing binary KIC 9851944 and analysis of its tidally-perturbed p- and g-mode pulsations
• Discovery of an Extremely r-process-enhanced Thin-disk Star with [Eu/H] = +0.78
• RR Lyrae stars as probes of the outer Galactic halo: Chemical and kinematic analysis of a pilot sample
• Something borrowed, something blue: The nature of blue metal-poor stars inferred from their colours and chemical abundances
• On the physical nature of the Wilson-Bappu effect: revising the gravity and temperature dependence
• Automatic line selection for abundance determination in large stellar spectroscopic surveys
• J01020100-7122208: an accreted evolved blue straggler that wasn't ejected from a supermassive black hole
• Comprehensive study of five candidate delta Scuti-type pulsators in detached eclipsing binaries
• Benchmark stars, benchmark spectrographs: Detailed spectroscopic comparison of ESPRESSO, PEPSI, and HARPS data for Gaia benchmark stars
• Full abundance study of two newly discovered barium giants
• High-resolution spectroscopy of detached eclipsing binaries during total eclipses
• Observational constraints on the origin of the elements. X. Combining NLTE and machine learning for chemical diagnostics of 4 million stars in the 4MIDABLE-HR survey
• A method to derive self-consistent NLTE astrophysical parameters for 4 million high-resolution 4MOST stellar spectra in half a day with invertible neural networks
• A Homogeneous Catalog of Rossiter-McLaughlin Systems: Distinct $e$-$\lambda$ Trends in Three Gas-Giant Mass Regimes
• LRPayne: Stellar parameters and abundances from low-resolution spectra