Hostname: page-component-77c89778f8-m42fx Total loading time: 0 Render date: 2024-07-16T12:32:13.335Z Has data issue: false hasContentIssue false
  • English
  • Français

Coulomb Corrections and Globular Cluster Stellar Evolution

Published online by Cambridge University Press:  12 April 2016

Charles R. Proffitt
Charles R. Proffitt*
Affiliation:
Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218

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 effects of Coulomb corrections on the evolution of globular clusters stars are discussed. Coulomb corrections alter the equation of state by about 1% in most of the stellar interior, and for stars of fixed initial parameters, this results in an 8% increase in the ZAMS luminosity and an 8% decrease in the age at the main sequence turnoff. Ages for globular clusters measured by comparing to the turnoff luminosity of theoretical isochrones are lowered by ≈ 4% when Coulomb effects are included.

Keywords

stellar interiorsglobular clustersequation of state
Type
V. The changing interior
Information
International Astronomical Union Colloquium , Volume 137: Inside the Stars , 1993 , pp. 451 - 453
Copyright
Copyright © Astronomical Society of the Pacific 1993

References

Chieffi, A. & Straniero, O. 1989, ApJS, 71, 47 Google Scholar
Däppen, W., Lebreton, Y., & Rogers, F. 1990, Solar Physics, 128, 35 Google Scholar
Däppen, W., Mihalas, D., Hummer, D.G., & Mihalas, B.W. 1988, ApJ, 332, 261 Google Scholar
Eggleton, P.P, Faulkner, J., & Flannery, B.P. 1973, A&A, 23, 325 Google Scholar
Graboske, H.C., Harwood, D.J., & Rogers, F.J. 1969, Phys. Rev., 186, 210 Google Scholar
Guenther, D.B., Demarque, P., Kim, Y.-C., & Pinsonneault, M.H. 1992, ApJ, 387, 372 Google Scholar
Mihalas, D., Däppen, W., & Hummer, D.G. 1988, ApJ, 331, 815 Google Scholar
Proffitt, C.R. & VandenBerg, D.A. 1991, ApJS, 77, 473 Google Scholar
Straniero, O. 1988, A&A Sup. 76, 157 Google Scholar
VandenBerg, D.A., Bolte, M., & Stetson, P.B. 1990, AJ, 100, 445 Google Scholar