Departures from lte in chemically stratified atmospheres

Details Departures from lte in chemically stratified atmospheres Departures from lte in chemically stratified atmospheres

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010eas....43..215m&link_type=abstract

EAS Publications Series, Volume 43, 2010, Non-LTE Line Formation for Trace Elements in Stellar Atmospheres, Edited by R. Monier,

Astronomy and Astrophysics

Astrophysics

Scientific paper

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.
This research was supported by the Presidium RAS Programme “Origin and evolution of stars and galaxies”.

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