Non-LTE calculations for neutral Na in late-type stars using improved atomic data
Neutral sodium is a minority species in the atmospheres of late-type stars, and line formation in local thermodynamic equilibrium (LTE) is often a poor assumption, in particular for strong lines. We present an extensive grid of non-LTE calculations for several Naâ€‰ I lines in cool stellar atmospheres, including metal-rich and metal-poor dwarfs and giants. For the first time, we constructed a Na model atom that incorporates accurate quantum mechanical calculations for collisional excitation and...[Show more]
|Collections||ANU Research Publications|
|Source:||Astronomy and Astrophysics|
|Access Rights:||Open Access|
|01_Lind_Non-LTE_calculations_for_2011.pdf||682.85 kB||Adobe PDF|
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