Spectroscopy with Three-Dimensional Model Atmospheres of Late-Type Stars
Abstract
In this contribution, I present the results of a differential analysis of CH spectral lines for the determination of carbon abundances with three- and one-dimensional model atmospheres of late-type stars at various metallicities. 3D-1D abundance corrections are found to be significant particularly at low metallicities and for turn-off stars. The dependence of 3D-1D carbon abundance corrections on the stellar C/O ratio is also discussed.
- Publication:
-
IAU Focus Meeting
- Pub Date:
- 2016
- DOI:
- Bibcode:
- 2016IAUFM..29B.151C
- Keywords:
-
- stars: abundances;
- stars: late-type;
- stars: atmospheres;
- hydrodynamics;
- convection;
- radiative transfer;
- line: formation;
- stars: carbon