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Be Stars as Rotating Stars: Observations: (Review Paper)

Published online by Cambridge University Press:  14 August 2015

Arne Slettebak
Arne Slettebak*
Affiliation:
Perkins Observatory, Ohio State and Ohio Wesleyan Universities, Delaware, Ohio, U.S.A.

Abstract

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The classical rotational hypothesis for Be stars is reviewed and discussed. Methods of measuring rotational velocities are considered and the particular difficulties that Be stars pose in this respect are pointed out. Several tests of the rotational hypothesis are discussed and shown to support this idea. New observations of Balmer emission-line widths in the spectra of 46 Be stars show a correlation with rotational velocity, also in support of the rotational hypothesis. The very large emission widths found for some Be stars are discussed and possible reasons for the broadening are presented.

Type
Part II: Be Stars as Rotating Stars
Information
Symposium - International Astronomical Union , Volume 70: Be and Shell Stars , 1976 , pp. 123 - 136
Copyright
Copyright © Reidel 1976 

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