Detection of nonuniform surface chemical abundance distributions on β Coronae Borealis

Details Detection of nonuniform surface chemical abundance distributions on β Coronae Borealis Detection of nonuniform surface chemical abundance distributions on β Coronae Borealis

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004mast.conf..205w&link_type=abstract

Magnetic stars, Proceedings of the International Conference, held in the Special Astrophysical Observatory of the Russian AS, Au

Astronomy and Astrophysics

Astrophysics

Magnetic Fields, Abundances, Β Crb

Scientific paper

We employ Stokes I and V LSD profiles of the cool magnetic Ap star β CrB, extracted for the elements Ti, Cr, Fe and Ba, to confirm systematic element-to-element differences in the longitudinal field variation of this star. We also detect for the first time convincing equivalent width variations in the spectral lines of β CrB. Using these new measurements, we derive coarse models of the distributions of these four elements across the stellar surface.

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