Nitrogen excess in slowly-rotating β Cephei stars: deep mixing or diffusion?

Details Nitrogen excess in slowly-rotating β Cephei stars: deep mixing or diffusion? Nitrogen excess in slowly-rotating β Cephei stars: deep mixing or diffusion?

Jun 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007coast.150..199m&link_type=abstract

Communications in Astroseismology, Vol. 150, p.199

Astronomy and Astrophysics

Astronomy

2

Scientific paper

We present the results of an NLTE abundance study of a small sample of β Cephei stars, which point to the existence of a population of slowly-rotating B-type pulsators exhibiting a significant amount of nitrogen-enriched material at their surface. Although the origin of this nitrogen excess remains unclear, an overabundance preferentially occurring in stars with a detected magnetic field seems to emerge at this stage. Full details can be found in Morel et al. (2006).

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