Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980aj.....85..599b&link_type=abstract
Astronomical Journal, vol. 85, May 1980, p. 599-610.
Astronomy and Astrophysics
Astrophysics
22
Astrophysics, Diffuse Radiation, Main Sequence Stars, Peculiar Stars, Stellar Radiation, A Stars, Abundance, Chemical Properties, Frequencies, Magnetic Stars, Metallic Stars, Physical Properties, Stellar Atmospheres, Stellar Motions
Scientific paper
Chemical abundances, frequencies, and magnetic field data for peculiar stars on the upper main sequence are compared with the predictions of the theory of radiatively driven diffusion of the chemical elements. The general dependence of the peculiarities on temperature, rotation, and the presence of large scale magnetic fields is in qualitative agreement with an explanation in terms of stability of the stellar atmosphere against mixing. However, large abundance differences between stars of similar temperatures and peculiarity classes do not correlate with other physical properties.
Bonsack Walter K.
Wolff Sidney C.
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