Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-27T10:03:28.219Z Has data issue: false hasContentIssue false
  • English
  • Français

Dynamical Evolution of Mass-Segregated Clusters

Published online by Cambridge University Press:  01 September 2007

Enrico Vesperini ,
Steve McMillan  and
Simon Portegies Zwart
Enrico Vesperini
Affiliation:
Department of Physics, Drexel University, Philadelphia, PA, USA
Steve McMillan
Affiliation:
Department of Physics, Drexel University, Philadelphia, PA, USA
Simon Portegies Zwart
Affiliation:
Astronomical Institute “Anton Pannekoek” and Section Computational Science, University of Amsterdam
Rights & Permissions [Opens in a new window]

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.

We present the results of a survey of N-body simulations aimed at exploring the implications of primordial mass segregation on the dynamical evolution of star clusters. We show that, in a mass-segregated cluster, the effect of early mass loss due to stellar evolution is, in general, more destructive than for an unsegregated cluster with the same density profile and leads to shorter lifetimes, a faster initial evolution toward less concentrated structure and flattening of the stellar initial mass function.

Keywords

globular clusters: generalmethods: n-body simulationsstellar dynamics
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S246: Dynamical Evolution of Dense Stellar Systems , September 2007 , pp. 181 - 185
Copyright
Copyright © International Astronomical Union 2008

References

Bonnell, I. A., Clarke, C. J., Bate, M. R., & Pringle, J. E. 2001, MNRAS, 324, 573CrossRefGoogle Scholar
Bonnell, I. A. & Bate, M. R., 2006, MNRAS, 370, 488CrossRefGoogle Scholar
Chernoff, D. & Shapiro, S., 1987, ApJ, 322, 113Google Scholar
Chernoff, D. & Weinberg, M., 1990, ApJ, 351, 121Google Scholar
de Grijs, R., Gilmore, G. F., Johnson, R. A., & Mackey, A. D. 2002, MNRAS, 331, 245Google Scholar
Fischer, P., Pryor, C., Murray, S., Mateo, M., & Richtler, T. 1998, AJ, 331, 592CrossRefGoogle Scholar
Fukushige, T. & Heggie, D., 1995, MNRAS, 276, 206Google Scholar
Gouliermis, D., Keller, S. C., Kontizas, M., Kontizas, E., & Bellas-Velidis, I., 2004, A&A, 416, 137Google Scholar
Hillenbrand, L. A., 1997, AJ, 113, 1733CrossRefGoogle Scholar
Hillenbrand, L. A. & Hartmann, L. E., 1998, ApJ, 331, 540Google Scholar
Hills, J., 1980, ApJ, 235, 968CrossRefGoogle Scholar
Klessen, R., 2001, ApJ, 556, 837CrossRefGoogle Scholar
Kroupa, P., Tout, C., & Gilmore, G., 1993, MNRAS, 262, 545CrossRefGoogle Scholar
Krumholz, M. R., Klein, R. I. & McKee, C. F., 2005, Nature, 438, 332Google Scholar
Krumholz, M. R. & Bonnell, I., 2007 astro-ph 0712.0828Google Scholar
McMillan, S., Vesperini, E., & Portegies Zwart, S., 2007, ApJ, 655, L45Google Scholar
Portegies Zwart, S. F., McMillan, S. L. W., Hut, P., & Makino, J. 2001, MNRAS, 321, 199Google Scholar
Sirianni, M., Nota, A., De Marchi, G., Leitherer, C., & Clampin, M. 2002, ApJ, 579, 275CrossRefGoogle Scholar
Stolte, A., Brandner, W., Brandl, B., & Zinnecker, H. 2006, AJ, 132, 253CrossRefGoogle Scholar
Vesperini, E. & Zepf, S., 2003, ApJ, 587, L97Google Scholar