EAS Publications Series
Volume 43, 2010Non-LTE Line Formation for Trace Elements in Stellar Atmospheres
|Page(s)||215 - 222|
|Published online||16 November 2010|
R. Monier, B. Smalley, G. Wahlgren and Ph. Stee (eds)
EAS Publications Series, 43 (2010) 215-222
Departures from lte in chemically stratified atmospheres
Institute of Astronomy, Russian
Academy of Science, Pyatnitskaya
Two astrophysical problems are reviewed where non-LTE line formation for the selected atoms is considered in a chemically stratified atmosphere and this leads to better interpretation of observed data. These are an origin of the Mn ii emission lines in the 3He and HgMn stars and a violation of the ionization equilibrium between the second and first ions of rare-earth elements in rapidly oscillating chemically peculiar stars.
© EAS, EDP Sciences 2010
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