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Search for Long-Period Radial Velocity Variations in Some Be Stars

Published online by Cambridge University Press:  14 August 2015

L. Pastori ,
E. Antonello ,
M. Fracassini  and
L.E. Pasinetti
L. Pastori
Affiliation:
Osservatorio Astronomico di Milano-Merate
E. Antonello
Affiliation:
Osservatorio Astronomico di Milano-Merate
M. Fracassini
Affiliation:
Instituto di Astronomia e Geodesia, Milano Dipartimento di Fisica, Università di Milano
L.E. Pasinetti
Affiliation:
Osservatorio Astronomico di Milano-Merate Instituto di Astronomia e Geodesia, Milano Dipartimento di Fisica, Università di Milano

Extract

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Some astronomers have suggested long period phenomena in the Be stars: Hubert (1971), Delplace and Hubert (1975), Feinstein (1975), Harmanec et al. (1976), Pustylnik (1976). In particular, Fracassini et al. (1977) have made a periodogram analysis of the radial velocities (RV) of the Be star o And from 1900 to 1976, to connect the shell appearance with eventual long-term RV variations. In the present study all the RV of seven Be stars, found in the literature from the beginning of the century up to now, have been assembled and analysed in the same way as o And, in order to find out long period phenomena (duplicity, variability, shell activity, etc…). A brief review on the studied stars may be found in Harmanec et al. (1980).

Type
III. Spectroscopy
Information
Symposium - International Astronomical Union , Volume 98: Be Stars , 1982 , pp. 155 - 159
Copyright
Copyright © Reidel 1982 

References

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