Diffusion in the Atmospheres of CP Stars

Details Diffusion in the Atmospheres of CP Stars Diffusion in the Atmospheres of CP Stars

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005jrasc..99t.139l&link_type=abstract

Journal of the Royal Astronomical Society of Canada, Vol. 99, No. 4, p.139

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Scientific paper

Atomic diffusion can dominate other hydrodynamical processes and create abundance gradients in the atmospheres of some stars. This abundance stratification can modify the physical structure of the atmosphere. It is then imperative to include the effect of elemental stratification in the modelling of stellar atmospheres. Recent results of atmospheric modelling including diffusion based on a modified version of the PHOENIX code will be presented. Difficulties and uncertainties arising from these models will also be discussed.

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