New models of abundance stratifications in the atmospheres of magnetic Ap stars

Details New models of abundance stratifications in the atmospheres of magnetic Ap stars New models of abundance stratifications in the atmospheres of magnetic Ap stars

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sf2a.conf..443a&link_type=abstract

SF2A-2006: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: D. Barret, F. Casoli, G.

Astronomy and Astrophysics

Astrophysics

Scientific paper

The atmospheres of magnetic Ap stars (chemically peculiar stars) are supposed to be inhomogeneous in chemical abundances. This prediction of the atomic diffusion hypothesis is confirmed by recent observations. However, numerical modelling of these stratifications is very difficult, especially for atmospheres with strong magnetic fields. We present here preliminary results of abundance stratifications (equilibrium solutions) obtained for the first time by detailed calculations including magnetic fields.

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