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Colour changes in mid-B star variables

Published online by Cambridge University Press:  25 April 2016

R. D. Watson
R. D. Watson*
Affiliation:
Physics Department, University of Tasmania
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Abstract

Model predictions of light changes due to non-radial stellar pulsation have been compared with the observations of light and colour changes in mid-B star variables made by Waelkens and Rufener (1985). It is concluded that these observations are consistent with the presence of low l (dipole and quadrupole) non-radial pulsations in the stars. This strengthens Waelkens and Rufener’s hypothesis that these variables may be identified with the 53 Persei stars. The differences between the model predictions for these large Q variables, which have periods in the 1 to 3 day range, and the predictions of small Q models, which apply to β Cephei variables, are explained.

Type
Stellar
Information
Publications of the Astronomical Society of Australia , Volume 7 , Issue 1 , 1987 , pp. 38 - 41
Copyright
Copyright © Astronomical Society of Australia 1987

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