期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 341, 期 1, 页码 247-250出版社
BLACKWELL PUBLISHING LTD
DOI: 10.1046/j.1365-8711.2003.06407.x
关键词
stellar dynamics; galaxies : star clusters
This paper considers the phenomenon of deep core collapse in collisional stellar systems, with stars of equal mass. The collapse takes place on some multiple, xi(-1), of the central relaxation time, and produces a density profile in which rho proportional to r(-alpha), where alpha is a constant. The parameters alpha and xi have usually been determined from simplified models, such as gas and Fokker-Planck models, often with the simplification of isotropy. Here we determine the parameters directly from N-body simulations carried out using the newly completed GRAPE-6.
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