Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-18T08:45:29.049Z Has data issue: false hasContentIssue false
  • English
  • Français

Baade-Wesselink Radii of Long Period Cepheids New Observational Results

Published online by Cambridge University Press:  12 April 2016

Iain M. Coulson ,
John A. R. Caldwell  and
Wolfgang Gleren
Iain M. Coulson
Affiliation:
South African Astronomical Observatory, P. O. Box 9 Observatory 7935
John A. R. Caldwell
Affiliation:
South African Astronomical Observatory, P. O. Box 9 Observatory 7935
Wolfgang Gleren
Affiliation:
Observatorio Astronomico Universidad Nacional and Physics Department, Universidad de Los Andes, Begota, Colombia

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.

The radii of Galactic Cepheids as determined from a version of the Baade-Wesselink technique are shown to depend upon the colour index used to define the temperature scale. The (V-l) radii are systematically larger than the commonly used (B-V) radii and are probably better estimators of the true radii. There still remains a problem, however, in reconciling the period-radius relation with the period-luminosity-colour relation.

Type
Part I. Fundamental Parameters
Information
International Astronomical Union Colloquium , Volume 82: Cepheids: Theory and Observations , 1985 , pp. 48 - 50
Copyright
Copyright © Cambridge University Press 1985

References

Balona, L. A., 1977. M.N.R.A.S., 178, 231.CrossRefGoogle Scholar
Coulson, I. M., 1983. M.N.R.A.S., 200, 925.10.1093/mnras/203.4.925CrossRefGoogle Scholar
Dean, J. F., Warren, P. R. & Cousins, A. W.J., 1978. M.N.R.A.S., 183, 569.CrossRefGoogle Scholar
Gieren, W. P., 1982. Ap.J., 260, 208.10.1086/160247CrossRefGoogle Scholar
Menzies, J. W., Banfield, R. M. & Laing, J. D., 1980. SAAO Circ. No. 5, p 149.Google Scholar
Wilson, R. E., 1953. General Catalogue of Stellar Radial Velocities, Carnegie Inst. of Washington, D.C. Google Scholar