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Statistics of CP Stars in a Magnitude-Limited Sample: The Bright Star Catalogue

Published online by Cambridge University Press:  12 April 2016

H. Schneider
H. Schneider*
Affiliation:
Universitäts-Sternwarte, Geismarlandstr. 11, D-3400 Göttingen, Germany

Abstract

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In the past several authors investigated the incidence of CP Stars among field stars of the upper main sequence, e.g. Jaschek&Jascheck (1967), Wolff (1968), Abt (1979), or in open clusters e.g. Young&Martin (1973), Hartoog (1976), North&Cramer (1981). But the published values seem not to be very precise or universal because of the use of incomplete data bases like Osawa’s list (1965) or the old version of the Bright Star Catalogue or the concentration on selected samples e.g. open clusters. Only Smith (1973) gave realistic values in the case of CP1 stars.

In the meantime two decades passed and many new observations were obtained. In 1982 a new version of the Bright Star Catalogue with better spectral classifications was issued and a supplement to the BS catalogue was published (1983). Furthermore, Renson and co-workers presented 1991 their General Catalogue of Am and Ap Stars (in the following abbreviated to GCAAS). Now the moment has come to establish new and hopefully more precise values of the incidence of CP Stars using the new version of the Bright Star Catalogue and its supplement as the data base.

Type
VII. Photometric Variability and Evolutionary Status
Information
International Astronomical Union Colloquium , Volume 138: Peculiar versus Normal Phenomena in A-Type and Related Stars , 1993 , pp. 629 - 633
Copyright
Copyright © Astronomical Society of the Pacific 1993

References

Abt, H.A. 1979, Ap. J. 230, 485 Google Scholar
Hartoog, M.R. 1976, Ap. J. 205, 807 Google Scholar
Hoffleit, D., Jaschek, C., 1982, Bright Star Catalogue, Yale Uni.Obs., New Haven Google Scholar
Hoffleit, D., Saladyga, M. Wlasuk, P., 1983, A Supplement to the Bright Star Catalogue, Yale Uni.Obs., New Haven Google Scholar
Jaschek, C., Jaschek, M. 1967, in The Magnetic and Related Stars, ed. by Cameron, R.C., Mono Book Corp. Baltimore, p. 287 Google Scholar
North, P., Cramer, N. 1981, in Les Etoiles de Composition Chimique Anormale du Debut de la Sequence Principale, 23rd Liège Astrophys. Coll., p. 55 Google Scholar
Osawa, K. 1965: Ann. Tokyo Astron. Obs. Ser. II 9, 121 Google Scholar
Renson, P., Gerbaldi, M., Catalano, F.A. (GCAAS), 1991, Astr. Ap. Suppl., 89, 429 Google Scholar
Smith, M.A. 1973, Ap. J. Suppl. 25, 277 Google Scholar
Wolff, S.C. 1968, Pub. A.S.P., 80, 281 CrossRefGoogle Scholar
Yotmg, A., Martin, A.E. 1973, Ap. J. 181, 805 Google Scholar