The resonance lines of B II and Be II in Hg-Mn stars

Details The resonance lines of B II and Be II in Hg-Mn stars The resonance lines of B II and Be II in Hg-Mn stars

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...297..240s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 297, Oct. 1, 1985, p. 240-244.

Astronomy and Astrophysics

Astrophysics

13

Abundance, Metallic Stars, Peculiar Stars, Stellar Spectra, Beryllium, Boron, Iue, Line Spectra, Resonance

Scientific paper

The resonance lines of B II and Be II are analyzed in 25 Hg-Mn stars. The B II line is present in nine (36 percent) stars, and the line is absent in the remaining stars. Strengths of the B II and Be II lines are in accordance with the predictions of the diffusion theory for about half the sample stars. Five Hg-Mn stars show the strong B II line and the weak Be II lines, and they apparently do not follow the predictions of the 'parameter-free' diffusion model.

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