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Period variations in the Beta Cep star β Cru

Published online by Cambridge University Press:  26 May 2016

J.C. Valtier ,
E. Chapellier  and
J.M. Le Contel
J.C. Valtier
Affiliation:
Observatoire de la Côte d'Azur - department Fresnel
E. Chapellier
Affiliation:
Observatoire de la Côte d'Azur - department Fresnel
J.M. Le Contel
Affiliation:
Observatoire de la Côte d'Azur - department Fresnel

Extract

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β Cru (HR 4853) is a multiperiodic β Cep star. The main period has been found constant between 1958 and 1973 by Cuypers (1982). In order to extend the basis of the ephemeris, we computed two values of radial velocity maxima from individual measurements published by Campbell & Moore (1928) and Sahade & Albarracin (1952). In lack of simultaneous spectroscopic and photometric observations, we used an arbitrary value equal to 0.25 period for the phase lag.

Type
1. Pulsation and Rotation
Information
Symposium - International Astronomical Union , Volume 162: Pulsation, Rotation and Mass Loss in Early-Type Stars , 1994 , pp. 25 - 26
Copyright
Copyright © Kluwer 1994 

References

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