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The CNO-Cycle Elements in Atmospheres of B-Type Main Sequence Stars
Published online by Cambridge University Press: 19 July 2016
Extract
The aim of this short review is to pay attention to some problems connected with the He, C and N abundances in atmospheres of B-type main sequence stars. These elements participate in CNO-cycle which is the principle source of energy in such stars. As known, the He, C and N abundances in stellar interiors are considerably changed owing to CNO-cycle (oxygen abundance alter insignificantly). There are some variations of the He, C and N abundances in stellar atmospheres, too, and our task is to discuss probable causes of such variations. It is necessary to emphasize that only normal B-type stars are considered (not He-rich or He-weak, for example).
- Type
- The Upper Main Sequence
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- Copyright © Kluwer 1991