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Stellar parameters with FASMA: a new spectral synthesis package

M. Tsantaki, D. T. Andreasen, G. D. C. Teixeira, S. G. Sousa, N. C. Santos, E. Delgado Mena, G. Bruzual

Abstract
Current Galactic surveys, including the Gaia mission, rely on the efficiency of the spectral analysis techniques to provide precise and accurate spectral information (i.e. effective temperature, surface gravity, metallicity, and chemical abundances) in the shortest computational time. In this work, we present a new package to preform complete spectral analyses based on the spectral synthesis technique (Tsantaki et al. 2017, submitted). We focus on deriving atmospheric parameters for FGK-type stars using both high and medium resolution (GIRAFFE) spectra. This method is implemented on the Gaia-ESO benchmark stars to confirm its validity, achieving similar accuracy for the two resolution setups.

IAU Symposium S330 (Astrometry and Astrophysics in the Gaia sky)
Alejandra Recio-Blanco, Patrick de Laverny, Anthony G. A. Brown, Timo Prusti

Cambridge University Press
Volume 12, Page 271
2018 March

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Instituto de Astrofísica e Ciências do Espaço Universidade do Porto Faculdade de Ciências da Universidade de Lisboa
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia