Observational Aspects of Multiperiodicity in the β Canis Majoris Stars
Multiperiodicity has been recognized as an important aspect of β Canis Majoris-type variability ever since the intensive observations of the “classical” members of this group by Struve and his coworkers in the early 1950’s. About half the stars observed by Struve exhibited a radial-velocity variation whose period was several hours, but whose amplitude was modulated with a period of the order of days. This quickly became known as the “beat phenomenon,” and was interpreted as an interference between two nearly equal short periods.
KeywordsOrbital Period Radial Velocity Variable Star Velocity Amplitude Light Variation
Unable to display preview. Download preview PDF.
- Briers, R. 1967, I. A. U. Comm. 27, Inf. Bull. Var. Stars, No. 200.Google Scholar
- Fischel, D., Sparks, W. M. 1972, in The Scientific Results from the Orbiting Astronomical Observatory (0A0-2), ed. A. D. Code (Washington: U. S. Government Printing Office), p. 475.Google Scholar
- Hoof, A. van 1965b, Kl. Veroff. Remeis Sternw. Bamberg 4, No. 40, p. 149.Google Scholar
- Hopf, A. van 1967, I. A. U. Comm. 27, Inf. Bull. Var. Stars, No. 232.Google Scholar
- Le Contel, J.-M. 1969, in Non-Periodic Phenomena in Variable Stars, ed. L. Detre (Budapest: Academic Press), p. 297.Google Scholar
- Lomb, N. R. 1975a, Thesis, University of Sydney.Google Scholar
- Lomb, N. R. 1975b, M. N. R. A. S. 172, in press.Google Scholar
- Lomb, N. R. 1975c, Astrophys. and Space Sci., in press.Google Scholar
- Lomb, N. R., Shobbrook, R. R. 1975, preprint.Google Scholar
- Milone, L. A. 1962, Boln. Asoc. Argent. Astr. 4, 42.Google Scholar
- Opolski, A., Ciurla, T. 1962a, I. A. U. Comm. 27, Inf. Bull. Var. Stars. No. 8.Google Scholar