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A Preliminary Report on Simultaneous Ultraviolet and Optical Observations of Lambda Eridani

Published online by Cambridge University Press:  14 August 2015

C. T. Bolton
C. T. Bolton*
Affiliation:
David Dunlap Observatory, University of Toronto, P.O. Box 360, Richmond Hill, Ontario, CANADA L4C 4Y6

Extract

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Radial velocity observations of λ Eridani between 1971 and 1980 and uvbyHα photometry in 1977 show that the star is both a light and velocity variable with a period of 0.701538 d. Copernicus observations in 1977 are compatible with this result. Both the radial velocity and photometric amplitude are variable, and these variations may be correlated with the hydrogen emission line strength. The character and phasing of the light and velocity curves suggest that λ Eridani is a pulsating variable.

Type
III. Spectroscopy
Information
Symposium - International Astronomical Union , Volume 98: Be Stars , 1982 , pp. 181 - 184
Copyright
Copyright © Reidel 1982 

References

Abt, H.A., and Levy, S.G.: 1978, Ap. J. Supp. 36, pp. 241–258.CrossRefGoogle Scholar
Irvine, N.: 1974, private communication. Google Scholar
Irvine, N.: 1975, Ap. J. 196, pp. 773–775.CrossRefGoogle Scholar
Percy, J.R.: 1976, private communication. Google Scholar
Percy, J.R., and Lane, M.: 1977, A. J. 82, pp. 353–359.CrossRefGoogle Scholar
Smith, M., and McCall, M.L.: 1978, Ap. J. 223, pp. 221–233.Google Scholar