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Photoelectric Measures of Hα, Hβ and Hγ in Early-Type Stars

Published online by Cambridge University Press:  14 August 2015

A. Feinstein
A. Feinstein*
Affiliation:
Observatorio Astrónomico, Universidad Nacional de La Plata, Argentina

Abstract

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The results of over 200 stars measured with interference filters in Hα, Hβ and Hγ are given here. 113 Be stars from the northern and southern hemispheres were included. The comparison of 60 of them, in common with the observations made by Mendoza about 15 years ago, shows that nearly half of them have differences larger than 0.m030 in Hβ (Crawford system). On the other hand the comparison with the observations made recently by Crawford indicate variations in a short time for some active Be stars.

Type
Part III: Photometric Classification
Information
Symposium - International Astronomical Union , Volume 50: Spectral Classification and Multicolour Photometry , 1973 , pp. 202 - 207
Copyright
Copyright © Reidel 1973 

References

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