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Search for the Companion in the β CrB Spectrum*

Published online by Cambridge University Press:  12 April 2016

R. Faraggiana  and
M. Gerbaldi
R. Faraggiana
Affiliation:
Dipartimento di Astronomia - via Tiepolo 11 - 34131 Trieste -Italy
M. Gerbaldi
Affiliation:
Institut d’Astrophysique - 98bis, Bd. Arago - 75014 Paris -France

Extract

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Spectroscopic analyses of the β CrB spectrum have been performed in the past without taking into consideration the double nature of this well-known cool Ap star (e.g. Hiltner, 1945; Hack, 1958; Adelman, 1973). Recently, Kamper et al. (1990) have re-examined the astrometric (interferometric and visual) and spectroscopic (radial velocity) data and have given an improved orbit for the β CrB system (P=10.55 yr) and the passage at periastron at 1991.02.

Type
I. General Properties of CP Stars
Information
International Astronomical Union Colloquium , Volume 138: Peculiar versus Normal Phenomena in A-Type and Related Stars , 1993 , pp. 169 - 172
Copyright
Copyright © Astronomical Society of the Pacific 1993

Footnotes

*

Based on observations collected at the Observatoire de Haute Provence (OHP), France

References

Adelman, S.J., 1973, ApJ 183, 95 CrossRefGoogle Scholar
Breger, M., 1976, ApJS 32, 7 Google Scholar
Hack, M., 1958, Mem. Soc. Astron. Ital. 29, 263 Google Scholar
Hiltner, W.A., 1945, ApJ 102, 438 Google Scholar
Jamar, C., Macau-Hercot, D., Thomson, G.I., Houziaux, L., Wilson, R., 1976, Ultraviolet Bright-Star Spectrophotometric Catalogue, ESA SR-27Google Scholar
Kamper, K.W., McAlister, H.A., Hartkopf, W.I., 1990, AJ 100, 239.Google Scholar