276 citations · 2k across the 37 of their papers we have counts for
12 papers · 1 filter
Reconstructing the Initial Relaxation Time of Young Star Clusters in the Large Magellanic Cloud
Simon F. Portegies Zwart, Hui-Chen Chen
We reconstruct the initial two-body relaxation time at the half mass radius for a sample of young $\aplt 300$ Myr star clusters in the large Magellanic cloud. We achieve this by si…
The evolution of binary star clusters and the nature of NGC2136/NGC2137
Simon Portegies Zwart, Stephanie Rusli
We study the evolution of bound pairs of star clusters by means of direct N-body simulations. Our simulations include mass loss by stellar evolution. The initial conditions are sel…
The MODEST questions: challenges and future directions in stellar cluster research
Melvyn B. Davies, Pau Amaro-Seoane, Cees Bassa +7
We present a review of some of the current major challenges in stellar cluster research, including young clusters, globular clusters, and galactic nuclei. Topics considered include…
Performance Analysis of Direct N-Body Algorithms on Special-Purpose Supercomputers
Stefan Harfst, Alessia Gualandris, David Merritt +3
Direct-summation N-body algorithms compute the gravitational interaction between stars in an exact way and have a computational complexity of O(N^2). Performance can be greatly enh…
Ejection of Hyper-Velocity Stars from the Galactic Centre by Intermediate-Mass Black Holes
Holger Baumgardt, Alessia Gualandris, Simon Portegies Zwart
We have performed N-body simulations of the formation of hyper-velocity stars (HVS) in the centre of the Milky Way due to inspiralling intermediate-mass black holes (IMBHs). We con…
Detecting Irregular Orbits in Gravitational N-body Simulations
Jort Gemmeke, Simon Portegies Zwart, Chael Kruip
We present a qualitative diagnostic based on the continuous wavelet transform, for the detection of irregular behavior in time series of particle simulations. We apply the method t…