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Photometric and Radial Velocity Variations of R CrB Near Maximum Light

Published online by Cambridge University Press:  12 April 2016

A.V. Raveendran ,
B.N. Ashoka  and
N. Kameswara Rao
A.V. Raveendran
Affiliation:
Indian Institute of AstrophysicsBangalore 560034, India
B.N. Ashoka
Affiliation:
Indian Institute of AstrophysicsBangalore 560034, India
N. Kameswara Rao
Affiliation:
Indian Institute of AstrophysicsBangalore 560034, India

Abstract:

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Fourier analysis of the light curves of RCrB in V band near maximum shows that in addition to several significant short periods there is a modulation of the visual light with a period around 1170 day, similar to that of L band flux, noticed by strecker. This indicates that there is some contribution to the visual light variations of the star from the pulsating circumstellar dust. Radial velocities of R CrB obtained at Kavalur during February-May 1985 show variations with a period around 47 days.

Type
IV Cool Hydrogen Deficient Stars
Information
International Astronomical Union Colloquium , Volume 87: Hydrogen Deficient Stars and Related Objects , 1985 , pp. 191 - 197
Copyright
Copyright © Reidel 1986

References

Deeming, T.J. 1975, Astrophys. Sp. Sci. 36, 137.Google Scholar
Feast, M.W., Catchpole, R.M., Lloyd Evans, T., Robertson, B.S.C., Dean, J.F. & Bywater, R.A. 1977, Mon. Not. R. astr. Soc., 178, 415.Google Scholar
Fernie, J.D., Sherwood, V. & DuPuy, D.L. 1972, Astrophys. J. 172, 383.CrossRefGoogle Scholar
Humphreys, R.M. & Ney, E.P. 1974, Astrophys. J. 190, 339.Google Scholar
Strecker, D.W. 1975, Astr. J. 80, 451.Google Scholar