A simple two-component description of energy equipartition and mass segregation for anisotropic globular clusters

21 Oct 2019 Torniamenti Stefano Bertin Giuseppe Bianchini Paolo

In weakly collisional stellar systems such as some globular clusters, partial energy equipartition and mass segregation are expected to develop as a result of the cumulative effect of stellar encounters even in systems initially characterized by star-mass independent density and energy distributions. In parallel, numerical simulations have demonstrated that radially-biased pressure anisotropy slowly builds up in realistic models of globular clusters from initial isotropic conditions, leading to anisotropy profiles that, to some extent, mimic those resulting from incomplete violent relaxation known to be relevant to elliptical galaxies... (read more)

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  • ASTROPHYSICS OF GALAXIES