Axial Rotation: Statistics of Early B Stars and the Effect on Line Intensities
Open Access
- 1 November 1975
- journal article
- research article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 173 (2) , 449-464
- https://doi.org/10.1093/mnras/173.2.449
Abstract
Frequency distributions of υ sin i on a uniform system are presented for O5–B5 stars. Theoretical distributions are given which take into account the effect of observational errors. Some physical implications are discussed. It is found that B stars probably do not rotate as solid bodies. Difficulties are encountered if Be stars are postulated to be rotating near their break-up velocity unless most of them are evolved from the main sequence, or have large differential rotations. A distinct correlation between hydrogen line strength and axial rotation is found.Keywords
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