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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

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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