How much can we trust high-resolution spectroscopic stellar atmospheric   parameters?
  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? 
S. Blanco-Cuaresma, T. Nordlander, U. Heiter, P. Jofr\'e, T. Masseron,   L. Casamiquela, H. M. Tabernero, S. S. Bhat, A. R. ...
astro-ph.SR astro-ph.IM