Hostname: page-component-8448b6f56d-mp689 Total loading time: 0 Render date: 2024-04-24T20:49:19.569Z Has data issue: false hasContentIssue false
  • English
  • Français

The Globular Cluster ω Centauri and its RR Lyrae Variables

Published online by Cambridge University Press:  12 April 2016

R.J. Dickens
R.J. Dickens*
Affiliation:
Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, UK

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 significance of some of the unusual characteristics of the globular cluster ω Centauri in various fundamental problems is explored. Interest is centred on the properties of the cluster RR Lyraes, and what they can contribute to studies of early cluster chemical enrichment, stellar pulsation, the distance scale, stellar evolution, stellar ages and the Oosterhoff period-shift problem. This article, which is intended to highlight problems and progress rather than give a comprehensive review, includes new results based on photometry of the RR Lyraes, red giants, subgiants, horizontal-branch and main sequence stars in the cluster.

Type
2. Morphology and History of the Galaxy
Information
International Astronomical Union Colloquium , Volume 111: The Use of Pulsating Stars in Fundamental Problems of Astronomy , 1989 , pp. 141 - 167
Copyright
Copyright © Cambridge University Press 1989

References

Bailey, S.I. (1902). Harvard Annals, 38.Google Scholar
Belserene, E.P. (1964). A.J., 69, 475.CrossRefGoogle Scholar
Bingham, E.A., Cacciari, C., Dickens, R.J. & Fusi Pecci, F. (1984). M.N.R.A.S., 209, 765.CrossRefGoogle Scholar
Buonanno, R., Corsi, C.E. & Fusi Pecci, F. (1988). ESO Preprint No.594.Google Scholar
Butler, D. (1975). Ap.J., 200, 68.CrossRefGoogle Scholar
Butler, D., Dickens, R.J. & Epps, E.A. (1978). Ap.J., 225, 148.CrossRefGoogle Scholar
Caldwell, S.P. & Dickens, R.J. (1988). M.N.R.A.S., 233, 367.CrossRefGoogle Scholar
Carney, B. (1979). Ap.J., 233, 211.CrossRefGoogle Scholar
Cohen, J.G. (1981). Ap.J., 246, 869.CrossRefGoogle Scholar
Da Costa, G.S. & Villumsen, J.V. (1981). In IAU Colloquium 68, Astrophysical Parameters for Globular Clusters, eds. Philip, A.G.Davis, Hayes, D.L., p. 527. Schenectady, N.Y.: L.Davis Press.Google Scholar
De Bruijn, J.W. & Lub, J. (1987). In Lecture Notes in Physics, Vol.274, eds. Cox, A.N., Sparks, W.M. & Starrfield, S.G., p. 233. Berlin: Springer-Verlag.Google Scholar
Dickens, R.J. (1982). In Pulsations in Classical and Cataclysmic Variable Stars, eds. Cox, J.P. & Hansen, C.J., p. 182. Boulder, CO: J.I.L.A. Google Scholar
Dickens, R.J. & Bingham, E.A. (1989). in preparation.Google Scholar
Dickens, R.J., Brodie, I.R., Bingham, E.A., & Caldwell, S.P. (1988). Rutherford Appleton Laboratory Report, No. RAL-88-004.Google Scholar
Dickens, R.J. & Caldwell, S.P. (1988). M.N.R.A.S., 233, 677.CrossRefGoogle Scholar
Dickens, R.J. & Saunders, J. (1965). Roy. Obs. Bull., No. 101.Google Scholar
Freeman, K.C. (1985). In IAU Symposium 113, Dynamics of Star Clusters, ed. Goodman, J.,Hut, P.(Dordrecht:Reidel). 33.Google Scholar
Freeman, K.C. & Rodgers, A.W. (1975). Ap.J.Letts., 201, L71.CrossRefGoogle Scholar
Frogel, J.A., Cohen, J.G. & Persson, S.E. (1983). Ap.J., 275, 773.CrossRefGoogle Scholar
Gratton, R.G., Tornambé, A. & Ortolani, S. (1986). Astron. & Astrophys., 169, 111.Google Scholar
Harding, G.A. (1965). Roy.Obs.Bull., No.99.Google Scholar
Hesser, J.E., Harris, W.E., VandenBerg, D.A., Allwright, J.W.B., Shott, P. & Stetson, P.B. (1987). P.A.S.P., 99, 739.CrossRefGoogle Scholar
Lester, J.B.,Gray, R.O. & Kurucz, R.L. (1986). Ap.J.Suppl., 61, 509.CrossRefGoogle Scholar
Longmore, A.J.,Dixon, R.I. & Skillen, I. (1989). in preparation.Google Scholar
Lub, J. (1977). Thesis, University of Leiden.Google Scholar
Martin, W.Chr. (1938). Leiden Annals, 17.Google Scholar
Nemec, J.M., Nemec, A.F.L. & Norris, J. (1986). A.J., 92, 358.CrossRefGoogle Scholar
Noble, R.G. (1987). Ph.D. Thesis, University of Leeds.Google Scholar
Noble, R.G. & Dickens, R.J. (1988). In New Ideas in Astronomy, p. 59. Cambridge: Cambridge University Press.Google Scholar
Noble, R.G., Dickens, R.J., Buttress, J. & Griffiths, W.K. (1989). In preparation.Google Scholar
Persson, S.E., Frogel, J.A., Cohen, J.G., Aaronson, M. & Matthews, K. (1980). Ap.J., 235, 452.CrossRefGoogle Scholar
Sandage, A.R. (1982). Ap.J., 252, 553.CrossRefGoogle Scholar
Searle, L. (1977). In The Evolution of Galaxies and Stellar Populations, eds. Larsen, R. & Tinsley, B., p. 219. New Haven, CT: Yale University Observatory.Google Scholar
Smith, G.H. (1987). P.A.S.P., 99, 67.CrossRefGoogle Scholar
Smith, H.A. (1981). A.J., 86, 538.CrossRefGoogle Scholar
Stellingwerf, R.F. (1984). Ap.J., 272, 322.CrossRefGoogle Scholar
Stellingwerf, R.F. & Dickens, R.J. (1983). unpublished.Google Scholar
Sweigart, A.V. & Gross, P.G. (1976). Ap.J.Suppl., 32, 367.CrossRefGoogle Scholar
Sweigart, A.V.,Renzini, A. & Tornambé, A. (1987). Ap.J., 312, 762.CrossRefGoogle Scholar
Tuggle, R.S. & Iben, I. (1972). Ap.J., 178, 455.CrossRefGoogle Scholar
Van Albada, T.S. & Baker, N. (1971). Ap.J., 169, 311.CrossRefGoogle Scholar
Van Albada, T.S. & Baker, N. (1973). Ap.J., 185, 477.CrossRefGoogle Scholar
VandenBerg, D.A. & Bell, R.A. (1985). Ap.J.Suppl., 58, 56.Google Scholar
Woolley, R.v.d.R. (1966). Roy.Obs.Ann., No.2.Google Scholar