Speaker
Dr
Anish Amarsi
(MPIA)
Description
Stellar abundance measurements are heavily model dependent, and for late-type
stars, and especially for metal-poor late-type stars, the accuracy is often
limited by the use of one-dimensional (1D) hydrostatic model atmospheres and
the assumption of local thermodynamic equilibrium (LTE). Recently it has
become feasible to relax both assumptions simultaneously, i.e. to perform 3D
non-LTE spectroscopic analyses. In this talk I shall discuss the physics of
this more accurate method and review recent developments, including our latest
results for carbon, oxygen, and iron abundances in the metal-poor halo.
| Talk/Poster | Talk |
|---|
Primary author
Dr
Anish Amarsi
(MPIA)
