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Hα and Hβ Measures as Related to Be Star Rotation

Published online by Cambridge University Press:  14 August 2015

Alejandro Feinstein
Alejandro Feinstein*
Affiliation:
Observatorio Astronómico, Universidad Nacional de La Plata, Argentina
*
*Visiting Astronomer, Cerro Tololo Inter-American Observatory, which is operated by the Association of Universities for Research in Astronomy Inc., under contract with the National Science Foundation.

Abstract

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Photometric data for the hydrogen lines in 80 southern and 55 northern Be stars give evidence of a constant ratio for the emission in α and β in stars of similar spectral type. In an (α, β) diagram the intersection of this emission-line ratio with the standard relation for non-emission stars gives lower values than those corresponding to standard stars of the same spectral type. This may be due to rotational effects. A correlation of the variation in the β index with the V magnitude is also given.

Type
Part II: Be Stars as Rotating Stars
Information
Symposium - International Astronomical Union , Volume 70: Be and Shell Stars , 1976 , pp. 149 - 154
Copyright
Copyright © Reidel 1976 

References

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