Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-26T03:40:20.806Z Has data issue: false hasContentIssue false
  • English
  • Français

A Search for Spectroscopic Binaries among Southern Cepheids

Published online by Cambridge University Press:  12 April 2016

T. Lloyd Evans

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A discussion of radial velocities determined at the Radcliffe Observatory for 20 southern Cepheids and those found in the literature for another 20 stars lead to the conclusion that 15% of Cepheids are members of long period binary systems (1). The observational data were heterogeneous, few stars having been observed by a single observer or with the same instrument over a sufficient length of time to detect long period variations in the mean velocity.

Type
IV. Duplicity and its Consequences among the Intrinsic Variable Stars
Information
International Astronomical Union Colloquium , Volume 15: New Directions and Frontiers in Variable Stars Research , 1971 , pp. 204 - 205
Copyright
Copyright © Cambridge University Press 1971

References

(1) Lloyd Evans, T., 1968, M.N.R.A.S., 141, 109.Google Scholar
(2) Joy, A. H., 1937, Ap. J., 86, 363.Google Scholar
(3) Stibbs, D. W. N., 1965, M.N.R.A.S., 115, 363.CrossRefGoogle Scholar
(4) Feast, M. W., 1967, M.N.R.A.S., 136, 141.CrossRefGoogle Scholar
(5) Walraven, J. H., Tinbergen, J., and Walraven, TH., 1964. B.A.N., 17, 520.Google Scholar
(6) Stoble, R. S., 1970, M.N.R.A.S., 148, 1.CrossRefGoogle Scholar
(7) Miller, J. and Preston, G. W., 1964, Ap. J., 139, 1126.Google Scholar
(8) Miller, J. and Preston, G. W., 1964, P.A.S.P., 76, 47.Google Scholar