Open AccessN-body Simulation of a Young Open Cluster
Author(s) -
Zhongmu Li
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1624/2/022036
Subject(s) - stars , cluster (spacecraft) , star cluster , computation , open cluster , physics , astrophysics , radius , mass segregation , luminosity , star (game theory) , stellar evolution , statistical physics , computer science , algorithm , galaxy , computer security , programming language
The evolutionary process of young clusters remains unclear. In order to investigate the detailed dynamical evolution of star clusters, this paper simulates a young open cluster to tens of million years, via a reliable N-body simulation code. The dynamical interactions among stars, and stellar evolution of both single and bianry stars have been taken into account. The position, velocity, effective temperature, luminosity, radius and mass of each star are finally calculated at different ages. It is shown that the size of simulated cluster increases with time. The size evolution of cluster is found to depend on the initial velocities of stars. Therefore, to determine the initial states of clusters is of key importance in the simulation of star clusters. The paralell computing technique is also tested by this simulation. The result shows that the computation speed is enhanced by six times when taking 8-core paralell computation instead of 1-core computation.