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An Observing Campaign for Systematic Photoelectric Observations of Bright Be Stars

Published online by Cambridge University Press:  14 August 2015

P. Harmanec ,
J. Horn  and
P. Koubský
P. Harmanec
Affiliation:
Astronomical Institute of the Czechoslovak Academy of Sciences, 251 65 Ondřejov, Czechoslovakia
J. Horn
Affiliation:
Astronomical Institute of the Czechoslovak Academy of Sciences, 251 65 Ondřejov, Czechoslovakia
P. Koubský
Affiliation:
Astronomical Institute of the Czechoslovak Academy of Sciences, 251 65 Ondřejov, Czechoslovakia

Extract

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Most of our present-day knowledge of the photometric behaviour of Be stars still comes from various surveys only. Little attention was paid to systematic studies of possible photometric variability of particular objects on different time scales. Nevertheless, just this kind of information is necessary if one wants to study the physical relationship and/or differences between Be stars and other types of B stars like Beta Cepheids, supergiants, helium-rich stars etc., and to test various models of the Be phenomenon. Long systematic photoelectric observations do exist only for several Be stars. They invariably indicate that the long-term variability - if present - is always the most pronounced one. In some cases, this long-term variability masks the periodic light variations occuring on shorter time scales (see, e.g., the case of CX Dra, Koubský et al 1980).

Type
Bibliography and Observing Campaigns
Information
Symposium - International Astronomical Union , Volume 98: Be Stars , 1982 , pp. 269 - 274
Copyright
Copyright © Reidel 1982 

References

Harmanec, P.: 1980, Be Star Newsletter (ed.Jaschek, M.) 1, 2 Google Scholar
Harmanec, P., Horn, J., Koubský, P., Žďrský, F., Kříž, S., Pavlovski, K.: 1980a, Bull. Astron. Inst. Czech. 31, 144 Google Scholar
Harmanec, P., Horn, J., Koubský, P.: 1980b, Be Star Newsletter (ed. Jaschek, M.) 2, 3 Google Scholar
Koubský, P., Harmanec, P., Horn, J., Jerzykiewicz, M., Kříž, S., Papoušek, J., Pavlovski, K., Žďárský, F.: 1980, Bull. Astron. Inst. Czech. 31, 75 Google Scholar