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How much can we trust high-resolution spectroscopic stellar chemical abundances?

2016/09/28 by S. Blanco-Cuaresma, Blanco-Cuaresma, S., T. Nordlander +19
Physics and Astronomy · #FOS: Physical sciences #Instrumentation and Methods for Astrophysics (astro-ph.IM) #Solar and Stellar Astrophysics (astro-ph.SR) #astro-ph.IM #astro-ph.SR

paper · pdf · doi:10.48550/arxiv.1609.09071

To appear in the Highlights on Spanish Astrophysics IX, Proceedings of the XII Scientific Meeting of the Spanish Astronomical Society

arxiv created 2016/09/28 · arxiv updated 2016/09/30

Abstract

To study stellar populations, it is common to combine chemical abundances from different spectroscopic surveys/studies where different setups were used. These inhomogeneities can lead us to inaccurate scientific conclusions. In this work, we studied one aspect of the problem: When deriving chemical abundances from high-resolution stellar spectra, what differences originate from the use of different radiative transfer codes?

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