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Stellar parameters with FASMA: a new spectral synthesis package

  • M. Tsantaki (a1), D. T. Andreasen (a2), G. D. C. Teixeira (a2), S. G. Sousa (a2), N. C. Santos (a2), E. Delgado-Mena (a2) and G. Bruzual (a1)...

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.

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References

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Andreasen, D. T., Sousa, S. G., Tsantaki, M., et al., 2017, A&A, 600, A69
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Tsantaki, M., Andreasen, D. T., Teixeira, G. D., Sousa, S. G., et al. 2017 (submitted), MNRAS
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Keywords

Stellar parameters with FASMA: a new spectral synthesis package

  • M. Tsantaki (a1), D. T. Andreasen (a2), G. D. C. Teixeira (a2), S. G. Sousa (a2), N. C. Santos (a2), E. Delgado-Mena (a2) and G. Bruzual (a1)...

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