We discuss three issues in the context of three-dimensional (3D) hydrodynamical model atmospheres for late-type stars, related to spectral line shifts, radiative transfer in metal-poor 3D models, and the solar oxygen abundance. We include a brief overview about the model construction, taking the radiation-hydrodynamics code CO5BOLD (COnservative COde for the COmputation of COmpressible COnvection in a BOx of L Dimensions with L=2,3) and the related spectral synthesis package Linfor3D as examples.
@article{arxiv.0704.1176,
title = {Hydrodynamical model atmospheres and 3D spectral synthesis},
author = {Hans-G. Ludwig and Matthias Steffen},
journal= {arXiv preprint arXiv:0704.1176},
year = {2009}
}
Comments
6 pages, 2 figures, to appear in the Proceedings of the ESO/Lisbon/Aveiro Workshop "Precision Spectroscopy in Astrophysics", eds. L. Pasquini, M. Romaniello, N.C. Santos, and A. Correia