The Gaia-ESO Survey: The analysis of high-resolution UVES spectra of FGK-type stars

R. Smiljanic; A. J. Korn; M. Bergemann; A. Frasca; L. Magrini; T. Masseron; E. Pancino; G. Ruchti; I. San Roman; L. Sbordone; S. G. Sousa; H. Tabernero; G. Tautvaisiene; M. Valentini; M. Weber; C. C. Worley; V. Zh. Adibekyan; C. Allende Prieto; G. Barisevicius; K. Biazzo; S. Blanco-Cuaresma; P. Bonifacio; A. Bragaglia; E. Caffau; T. Cantat-Gaudin; Y. Chorniy; P. de Laverny; E. Delgado-Mena; P. Donati; S. Duffau; E. Franciosini; E. Friel; D. Geisler; J. I. Gonzalez Hernandez; P. Gruyters; G. Guiglion; C. J. Hansen; U. Heiter; V. Hill; H. R. Jacobson; P. Jofre; H. Jonsson; A. C. Lanzafame; C. Lardo; H. G. Ludwig; E. Maiorca; S. Mikolaitis; D. Montes; T. Morel; A. Mucciarelli; C. Munoz; T. Nordlander; L. Pasquini; E. Puzeras; A. Recio-Blanco; N. Ryde; G. Sacco; N. C. Santos; A. M. Serenelli; R. Sordo; C. Soubiran; L. Spina; M. Steffen; A. Vallenari; S. van Eck; S. Villanova; G. Gilmore; S. Randich; M. Asplund; J. Binney; J. Drew; S. Feltzing; A. Ferguson; R. Jeffries; G. Micela; I. Negueruela; T. Prusti; H-W. Rix; E. Alfaro; C. Babusiaux; T. Bensby; R. Blomme; E. Flaccomio; P. Francois; M. Irwin; S. Koposov; N. Walton; A. Bayo; G. Carraro; M. T. Costado; F. Damiani; B. Edvardsson; A. Hourihane; R. Jackson; J. Lewis; K. Lind; G. Marconi; C. Martayan; L. Monaco; L. Morbidelli; L. Prisinzano; S. Zaggia

doi:10.1051/0004-6361/201423937

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The Gaia-ESO Survey: The analysis of high-resolution UVES spectra of FGK-type stars

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The Gaia-ESO Survey: The analysis of high-resolution UVES spectra of FGK-type stars

R. Smiljanic, A. J. Korn, M. Bergemann, A. Frasca, L. Magrini, T. Masseron, E. Pancino, G. Ruchti, I. San Roman, L. Sbordone, …

Astronomy & Astrophysics - A&A, Vol.570

2014

DOI: https://doi.org/10.1051/0004-6361/201423937

Abstract

stars: late-type

stars: fundamental parameters

methods: data analysis

stars: abundances

surveys

The Gaia-ESO Survey is obtaining high-quality spectroscopic data for about 10^5 stars using FLAMES at the VLT. UVES high-resolution spectra are being collected for about 5000 FGK-type stars. These UVES spectra are analyzed in parallel by several state-of-the-art methodologies. Our aim is to present how these analyses were implemented, to discuss their results, and to describe how a final recommended parameter scale is defined. We also discuss the precision (method-to-method dispersion) and accuracy (biases with respect to the reference values) of the final parameters. These results are part of the Gaia-ESO 2nd internal release and will be part of its 1st public release of advanced data products. The final parameter scale is tied to the one defined by the Gaia benchmark stars, a set of stars with fundamental atmospheric parameters. A set of open and globular clusters is used to evaluate the physical soundness of the results. Each methodology is judged against the benchmark stars to define weights in three different regions of the parameter space. The final recommended results are the weighted-medians of those from the individual methods. The recommended results successfully reproduce the benchmark stars atmospheric parameters and the expected Teff-log g relation of the calibrating clusters. Atmospheric parameters and abundances have been determined for 1301 FGK-type stars observed with UVES. The median of the method-to-method dispersion of the atmospheric parameters is 55 K for Teff, 0.13 dex for log g, and 0.07 dex for [Fe/H]. Systematic biases are estimated to be between 50-100 K for Teff, 0.10-0.25 dex for log g, and 0.05-0.10 dex for [Fe/H]. Abundances for 24 elements were derived: C, N, O, Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Mo, Ba, Nd, and Eu. The typical method-to-method dispersion of the abundances varies between 0.10 and 0.20 dex.

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Title: The Gaia-ESO Survey: The analysis of high-resolution UVES spectra of FGK-type stars
Creators - without role: R. Smiljanic - Nicolaus Copernicus Astronomical Center
A. J. Korn - Uppsala University
M. Bergemann - University of Cambridge
A. Frasca - Osservatorio Astrofisico di Catania
L. Magrini - Arcetri Astrophysical Observatory
T. Masseron - Université Libre de Bruxelles
E. Pancino - Osservatorio astronomico di Bologna
G. Ruchti - Lund University
I. San Roman - University of Concepción
L. Sbordone - Heidelberg University
S. G. Sousa - Centre for Astrophysics of the University of Porto
H. Tabernero - Universidad Complutense de Madrid
G. Tautvaisiene - Vilnius University
M. Valentini - Leibniz Institute for Astrophysics Potsdam
M. Weber - Leibniz Institute for Astrophysics Potsdam
C. C. Worley - Observatoire de la Côte d’Azur
V. Zh. Adibekyan
C. Allende Prieto - Universidad de La Laguna
G. Barisevicius - Vilnius University
K. Biazzo - Osservatorio Astrofisico di Catania
S. Blanco-Cuaresma - Université de Bordeaux
P. Bonifacio - Centre National de la Recherche Scientifique
A. Bragaglia - Osservatorio astronomico di Bologna
E. Caffau - Université Paris Cité
T. Cantat-Gaudin - University of Padua
Y. Chorniy - Vilnius University
P. de Laverny - Centre National de la Recherche Scientifique
E. Delgado-Mena
P. Donati - Osservatorio astronomico di Bologna
S. Duffau - Pontificia Universidad Católica de Chile
E. Franciosini - Arcetri Astrophysical Observatory
E. Friel - Indiana University Bloomington
D. Geisler - University of Concepción
J. I. Gonzalez Hernandez - Universidad de La Laguna
P. Gruyters - Uppsala University
G. Guiglion - Observatoire de la Côte d’Azur
C. J. Hansen - Heidelberg University
U. Heiter - Uppsala University
V. Hill - Centre National de la Recherche Scientifique
H. R. Jacobson - Massachusetts Institute of Technology
P. Jofre - Centre National de la Recherche Scientifique
H. Jonsson - Lund University
A. C. Lanzafame - Osservatorio Astrofisico di Catania
C. Lardo - Osservatorio astronomico di Bologna
H. G. Ludwig
E. Maiorca - Arcetri Astrophysical Observatory
S. Mikolaitis - Observatoire de la Côte d’Azur
D. Montes - Universidad Complutense de Madrid
T. Morel - University of Liège
A. Mucciarelli - University of Bologna
C. Munoz - University of Concepción
T. Nordlander - Uppsala University
L. Pasquini - European Southern Observatory
E. Puzeras - Vilnius University
A. Recio-Blanco
N. Ryde - Lund University
G. Sacco - Arcetri Astrophysical Observatory
N. C. Santos - Universidade do Porto
A. M. Serenelli - Institute of Space Sciences
R. Sordo - Osservatorio Astronomico di Padova
C. Soubiran - Université de Bordeaux
L. Spina - University of Florence
M. Steffen - Leibniz Institute for Astrophysics Potsdam
A. Vallenari - Osservatorio Astronomico di Padova
S. van Eck - Université Libre de Bruxelles
S. Villanova - University of Concepción
G. Gilmore - University of Cambridge
S. Randich - Arcetri Astrophysical Observatory
M. Asplund - Australian National University
J. Binney
J. Drew - University of Hertfordshire
S. Feltzing - Lund University
A. Ferguson
R. Jeffries - Keele University
G. Micela - Osservatorio Astronomico di Palermo
I. Negueruela - University of Alicante
T. Prusti - European Space Research and Technology Centre
H-W. Rix - Max Planck Institute for Astronomy
E. Alfaro - Instituto de Astrofísica de Andalucía
C. Babusiaux - Université Paris Cité
T. Bensby - Lund University
R. Blomme - Royal Observatory of Belgium
E. Flaccomio - Osservatorio Astronomico di Palermo
P. Francois - Centre National de la Recherche Scientifique
M. Irwin - University of Cambridge
S. Koposov - University of Cambridge
N. Walton - University of Cambridge
A. Bayo - University of Valparaíso
G. Carraro - European Southern Observatory
M. T. Costado - Instituto de Astrofísica de Andalucía
F. Damiani - Massachusetts Institute of Technology
B. Edvardsson - Uppsala University
A. Hourihane - University of Cambridge
R. Jackson - Keele University
J. Lewis - University of Cambridge
K. Lind - University of Cambridge
G. Marconi - European Southern Observatory
C. Martayan - European Southern Observatory
L. Monaco - European Southern Observatory
L. Morbidelli - Arcetri Astrophysical Observatory
L. Prisinzano - Osservatorio Astronomico di Palermo
S. Zaggia - Osservatorio Astronomico di Padova
Publication Details: Astronomy & Astrophysics - A&A, Vol.570
Identifiers: 9936201809311
Academic Unit: Université de Montpellier
Language: English
Resource Type: Journal article
Local Fields: hal-01061647