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How much can we trust high-resolution spectroscopic stellar atmospheric parameters?

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arxiv 1609.08092 v1 pith:OHMCKN4L submitted 2016-09-26 astro-ph.SR astro-ph.IM

How much can we trust high-resolution spectroscopic stellar atmospheric parameters?

classification astro-ph.SR astro-ph.IM
keywords parametersatmosphericdifferentcodesderivehigh-resolutionradiativespectra
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The determination of atmospheric parameters depends on the use of radiative transfer codes (among other elements such as model atmospheres) to compute synthetic spectra and/or derive abundances from equivalent widths. However, it is common to mix results from different surveys/studies where different setups were used to derive the parameters. These inhomogeneities can lead us to inaccurate conclusions. In this work, we studied one aspect of the problem: When deriving atmospheric parameters from high-resolution stellar spectra, what differences originate from the use of different radiative transfer codes?

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