Hostname: page-component-7bb8b95d7b-l4ctd Total loading time: 0 Render date: 2024-09-23T05:14:45.853Z Has data issue: false hasContentIssue false
  • English
  • Français

The Masses and Luminosities of Globular Cluster RRc Stars

Published online by Cambridge University Press:  15 February 2018

Norman R. Simon  and
Christine M. Clement
Norman R. Simon
Affiliation:
Department of Physics and Astronomy, University of Nebraska - Lincoln
Christine M. Clement
Affiliation:
Department of Astronomy, University of Toronto

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 large number of hydrodynamic pulsation models are converged in the first overtone, and their mean properties compared with observations of RRc stars in six globular clusters. The two observed quantities, period and Fourier parameter ϕ31, lead, via the models, to inferred values for mean mass, luminosity and temperature of the RRc sample in each cluster. We find a narrow range in intracluster RRc luminosity and temperature, but a wider range in mass. At the same time, the intercluster spread is wide in all three parameters. A full discussion of our techniques and results will be given elsewhere (Simon and Clement, in preparation).

Type
Windows on the Instability Strip
Information
International Astronomical Union Colloquium , Volume 139: New Perspectives on Stellar Pulsation and Pulsating Variable Stars , 1993 , pp. 315 - 323
Copyright
Copyright © Cambridge University Press 1993

References

Clement, C. M., Ferance, S. and Simon, N. R., in preparation.Google Scholar
Clement, C. M., Jankulak, M. and Simon, N. R. 1992, Ap. J. 395, 192.CrossRefGoogle Scholar
Rogers, F. J. and Iglesias, C. A. 1992, Ap. J. Suppl. 79, 507.CrossRefGoogle Scholar
Sandage, A. 1982, Ap. J. 252, 553.Google Scholar
Simon, N. R. 1988, in Pulsation and Mass Loss in Stars, ed. Stalio, R. and Willson, L. A. (Dordrecht: Reidel), p. 27.Google Scholar
Simon, N. R.. 1989, Ap. J. (Letters) 343, L17.Google Scholar
Simon, N. R.. 1990a, M.N.R.A.S. 246, 70.Google Scholar
Simon, N. R.. 1990b, Ap. J. 360, 119.Google Scholar
Simon, N. R. and Clement, C. M., in preparation (SCprep).Google Scholar