Stellar libraries for Gaia
Sordo R, Vallenari A, Tantalo R, Liu C, Smith K, Allard F, Blomme R, Bouret JC, Brott I, De Laverny P, Edvardsson B, Fremat Y, Heber U, Josselin E, Kochukhov O, Korn A, Lanzafame AC, Martayan C, Martins F, Plez B, Schweitzer A, Thevenin F, Zorec J (2011)
Publication Type: Conference contribution
Publication year: 2011
Publisher: Institute of Physics Publishing
Book Volume: 328
Conference Proceedings Title: Journal of Physics: Conference Series
DOI: 10.1088/1742-6596/328/1/012006
Abstract
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.
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Italy (IT)How to cite
APA:
Sordo, R., Vallenari, A., Tantalo, R., Liu, C., Smith, K., Allard, F.,... Zorec, J. (2011). Stellar libraries for Gaia. In Journal of Physics: Conference Series. Institute of Physics Publishing.
MLA:
Sordo, Rosanna, et al. "Stellar libraries for Gaia." Proceedings of the Stellar Atmospheres in the Gaia Era: Quantitative Spectroscopy and Comparative Spectrum Modelling Institute of Physics Publishing, 2011.
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