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Photoelectric Measures of Hα, Hβ and Hγ in Early-Type Stars
Published online by Cambridge University Press: 14 August 2015
Abstract
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.
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- Part III: Photometric Classification
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- Copyright © Reidel 1973