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The Depletion of Giants in Globular Clusters

Published online by Cambridge University Press:  25 May 2016

Simon F. Portegies Zwart
Simon F. Portegies Zwart*
Affiliation:
Astronomical Institute Utrecht, Postbus 80000, 3508 TA Utrecht, The Netherlands

Abstract

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A significant depletion of red giants is observed in the central regions of post-collapsed globulars (Djorgovski et al., 1993) like M 15 (Stetson, 1991). A simple model shows that the depletion of red giants in the high-density cores of globular clusters can be understood in terms of mutual stellar collisions. Slightly outside the core stellar collisions are not frequent enough to explain the reduction in the observed number of red giants.

Type
Stellar Evolution in Star Clusters
Information
Symposium - International Astronomical Union , Volume 174: Dynamical Evolution of Stars Clusters , 1996 , pp. 355 - 356
Copyright
Copyright © Kluwer 1996 

References

Djorgovski, S., Piotto, G., Phinney, E. S., & Chernoff, D. F. (1993) Modification of stellar populations in PCC globular clusters Astrophys. J. Lett. Vol. no. 372, pp. 41–44 CrossRefGoogle Scholar
Eggleton, P.P., Fitchet, M.J., Tout, C.A. (1989) The distribution of visual binaries with two bright components Astrophys. J. Vol. no. 347, pp. 998–1011 Google Scholar
Meylan, G. (1989) Studies of dynamical properties of globular clusters. Astron. & Astroph. J. Vol. no. 214, pp. 106–112 Google Scholar
Portegies Zwart, S.F., and Verbunt, F. (1996) Population synthesis of high-mass binaries Astron. & Astroph. J. in press Google Scholar
Portegies Zwart, S.F., Hut, P., and Verbunt, F. (1996) in preparation Google Scholar
Stetson, P. (1991) in Precision Photometry: Astrophysics of the Galaxy , eds. Philip, A.G.D., Upgren, A.R., & Janes, K., (Schenectady: L. Davis Press), pp. 69 Google Scholar