Search for abundance stratification in the atmosphere of the HgMn star HD143807

Details Search for abundance stratification in the atmosphere of the HgMn star HD143807 Search for abundance stratification in the atmosphere of the HgMn star HD143807

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sf2a.conf..287d&link_type=abstract

SF2A-2004: Semaine de l'Astrophysique Francaise, meeting held in Paris, France, June 14-18, 2004. Edited by F. Combes, D. Barret

Astronomy and Astrophysics

Astrophysics

Scientific paper

Selected lines of Ti,Cr,Mn,Fe,Y and Zr have been observed with GECKO spectrograph attached to the 3m60 telescope at CFH for 2 HgMn stars and 2 normal B stars. These lines are located shortwards and longwards of the Balmer discontinuity in order to probe the atmosphere at different optical depths regimes and look for the putative vertical stratification of these elements. We discuss here preliminary adjustments of the observed profiles to synthetic spectra computed for homogeneous atmospheres for the HgMn star HD143807.

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