The benchmark halo giant HD 122563: CNO abundances revisited with three-dimensional hydrodynamic model stellar atmospheres
We present an abundance analysis of the low-metallicity benchmark red giant star HD 122563 based on realistic, state-of-the-art, high-resolution, three-dimensional (3D) model stellar atmospheres including non-grey radiative transfer through opacity binning with 4, 12, and 48 bins. The 48-bin 3D simulation reaches temperatures lower by similar to 300-500 K than the corresponding 1D model in the upper atmosphere. Small variations in the opacity binning, adopted line opacities, or chemical mixture...[Show more]
|Collections||ANU Research Publications|
|Source:||Monthly Notices of the Royal Astronomical Society|
|Access Rights:||Open Access|
|01_Collet_The_benchmark_halo_giant_HD_2018.pdf||4.02 MB||Adobe PDF|
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