Stellar libraries for Gaia
R. Sordo
(1)
,
Antonella Vallenari
(1)
,
R. Tantalo
(2)
,
C. Liu
(3)
,
K. Smith
(3)
,
F. Allard
(4)
,
Ronny Blomme
(5)
,
J.-C. Bouret
(6)
,
I. Brott
(7)
,
P. de Laverny
(8)
,
B. Edvardsson
(9)
,
Yves Frémat
(5)
,
U. Heber
(10)
,
E. Josselin
(11)
,
Oleg Kochukhov
(12)
,
A. J. Korn
(12)
,
A. C. Lanzafame
(13)
,
Christophe Martayan
(14, 15)
,
Fabrice Martins
(11)
,
Bertrand Plez
(11)
,
A. Schweitzer
(16)
,
Frédéric Thévenin
(8)
,
Juan Zorec
(17)
1
INAF-Osservatorio Astronomico di Padova
2 Unipd - Università degli Studi di Padova = University of Padua
3 MPIA - Max-Planck-Institut für Astronomie
4 CRAL - Centre de Recherche Astrophysique de Lyon
5 ROB - Royal Observatory of Belgium = Observatoire Royal de Belgique
6 LAM - Laboratoire d'Astrophysique de Marseille
7 Astronomical Institute, Utrecht University
8 Observatoire de la Côte d'Azur
9 Department of Physics and Astronomy, Uppsala Astronomical Observatory
10 Dr. Karl Remeis-Sternwarte, Astronomisches Institut, Universität Erlangen-Nuremberg
11 GRAAL - Groupe de Recherches Autrichiennes et Allemandes. UHB
12 Uppsala University
13 Unict - Università degli studi di Catania = University of Catania
14 European Southern Observatory
15 GEPI - Galaxies, Etoiles, Physique, Instrumentation
16 Hamburger Sternwarte, Universität Hamburg
17 IAP - Institut d'Astrophysique de Paris
2 Unipd - Università degli Studi di Padova = University of Padua
3 MPIA - Max-Planck-Institut für Astronomie
4 CRAL - Centre de Recherche Astrophysique de Lyon
5 ROB - Royal Observatory of Belgium = Observatoire Royal de Belgique
6 LAM - Laboratoire d'Astrophysique de Marseille
7 Astronomical Institute, Utrecht University
8 Observatoire de la Côte d'Azur
9 Department of Physics and Astronomy, Uppsala Astronomical Observatory
10 Dr. Karl Remeis-Sternwarte, Astronomisches Institut, Universität Erlangen-Nuremberg
11 GRAAL - Groupe de Recherches Autrichiennes et Allemandes. UHB
12 Uppsala University
13 Unict - Università degli studi di Catania = University of Catania
14 European Southern Observatory
15 GEPI - Galaxies, Etoiles, Physique, Instrumentation
16 Hamburger Sternwarte, Universität Hamburg
17 IAP - Institut d'Astrophysique de Paris
E. Josselin
- Fonction : Auteur
- PersonId : 1363536
- IdHAL : eric-josselin
- ORCID : 0000-0001-5551-5595
Fabrice Martins
- Fonction : Auteur
- PersonId : 171832
- IdHAL : fabrice-martins
- ORCID : 0000-0001-5496-4567
- IdRef : 08409141X
Résumé
Gaia will observe up to a billion stellar sources. Automated algorithms are under development to derive the atmospheric parameters of all observed spectra, from low resolution optical spectra alone or in synergy with high resolution spectra in the near-IR Ca II triplet region. To do so, a large database of state-of-the-art stellar libraries has been produced for the Gaia community, computed using different codes optimized for specific purposes. The choice to use different spectral codes in different regions of the H-R diagram raises the problem of the coherence of the different spectra, specifically in the transition zones. We present a comparison between the libraries from the point of view of spectra simulations for training the Gaia algorithms. We also present the implementation of these libraries into a Simple Stellar Population code.