Effective temperature determinations of late-type stars based on 3D non-LTE Balmer line formation
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Amarsi, Anish M; Nordlander, Thomas; Barklem, P. S.; Asplund, Martin; Collet, Remo; Lind, K.
Hydrogen Balmer lines are commonly used as spectroscopic effective temperature diagnostics of late-type stars. However, reliable inferences require accurate model spectra, and the absolute accuracy of classical methods that are based on one-dimensional (1D) hydrostatic model atmospheres and local thermodynamic equilibrium (LTE) is still unclear. To investigate this, we carry out 3D non-LTE calculations for the Balmer lines, performed, for the first time, over an extensive grid of 3D...[Show more]
|Collections||ANU Research Publications|
|Source:||Astronomy and Astrophysics|
|Access Rights:||Open Access|
|01_Amarsi_Effective_temperature_2018.pdf||9.32 MB||Adobe PDF|
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