http://arxiv.org/abs/1903.11610
While observations show that globular clusters (GCs) are anisotropic, have a net rotation, and host multiple stellar populations, most theoretical models are traditionally limited to isotropic initial configurations. In this paper, we present the results of new direct N-body simulations on the dynamical evolution of rotating GCs with a multimass stellar population. In addition to the well known radial mass segregation effect, where heavy stars and stellar remnants sink toward the center of the cluster, we find a mass segregation in the distribution of orbital inclinations as well. This newly discovered anisotropic mass segregation leads to the formation of a disk-like structure of massive objects near the equatorial plane of the rotating cluster. This result has important implications on the expected spatial distribution of black holes in GCs.
&. Szölgyén, Y. Meiron and B. Kocsis
Fri, 29 Mar 19
54/78
Comments: 8 pages, 7 figures, 1 table
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