S.F. Portegies Zwart
- Reconstructing the initial relaxation time of young star clusters in the Large Magellanic Cloud
- Astronomical Society of the Pacific conference series
- Pages (from-to)
- Document type
- Faculty of Science (FNWI)
- Anton Pannekoek Institute for Astronomy (API)
Informatics Institute (IVI)
We reconstruct the initial two-body relaxation time at the half mass radius for a sample of young ~< 300 Myr star clusters in the Large Magellanic cloud. We achieve this by simulating star clusters with 12288 to 131072 stars using direct N-body integration. The equations of motion of all stars are calculated with high precision direct N-body simulations which include the effects of the evolution of single stars and binaries.
We find that the initial relaxation times of the sample of observed clusters in the Large Magellanic Cloud ranges from about 200 Myr to about 2Gyr. The reconstructed initial half-mass relaxation times for these clusters have a much narrower distribution than the currently observed distribution, which ranges over more than two orders of magnitude.
- Proceedings title: Mass loss from stars and the evolution of stellar clusters: Proceedings of a workshop held at Lunteren,
the Netherlands, 29 May-1 June 2006
Publisher: Astronomical Society of the Pacific (ASP)
Place of publication: San Francisco, CA
Editors: A. de Koter, L.J. Smith, L.B.F.M. Waters
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