3D hydrodynamical model stellar atmospheres of metal-poor red giants
Abstract
We investigate the main differences between static 1D and 3D time-dependent model stellar atmospheres of red giants at very low metallicities. We focus in particular on the impact of 3D LTE spectral line formation on the derivation of elemental abundances for the extremely metal-poor ([Fe/H] ≈-5.3) red giant HE 0107-5240.
- Publication:
-
From Lithium to Uranium: Elemental Tracers of Early Cosmic Evolution
- Pub Date:
- 2005
- DOI:
- 10.1017/S1743921305005661
- Bibcode:
- 2005IAUS..228..247C