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- W4239906923 abstract "Abstract Recent N -body simulations have shown that there is a serious discrepancy between the results of N -body simulations and the results of Fokker-Planck simulations for the evolution of globular and rich open clusters under the influence of the galactic tidal field. In some cases, the lifetime obtained from Fokker-Planck calculations is more than an order of magnitude smaller than those from N -body simulations. In this paper we show that the principal cause for this discrepancy is an oversimplified treatment of the tidal field used in previous Fokker-Planck simulations. We performed new Fokker-Planck calculations using a more appropriate implementation for the boundary condition of the tidal field. The implementation is only possible with anisotropic Fokker-Planck models, while all previous Fokker-Planck calculations rely on the assumption of isotropy. Our new Fokker-Planck results agree well with N -body results. Comparison of the two types of simulations gives a better understanding of the evolution of such clusters." @default.
- W4239906923 created "2022-05-12" @default.
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- W4239906923 date "1999-01-01" @default.
- W4239906923 modified "2023-10-01" @default.
- W4239906923 title "Escape from a Crisis in Fokker-Planck Models" @default.
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- W4239906923 doi "https://doi.org/10.1017/s0252921100072535" @default.
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