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- W1969053310 abstract "One can solve the Jeans equation analytically for equilibrated dark matter structures once two pieces of input from numerical simulations have been obtained. These inputs are (1) a connection between phase-space density and radius, and (2) a connection between velocity anisotropy and density slope, the α–β relation. The first (phase-space density versus radius) has already been analysed through several different simulations, however the second (α–β relation) has not been quantified yet. We perform a large set of numerical experiments in order to quantify the slope and zero-point of the α–β relation. We find a strong indication that the relation is indeed an attractor. When combined with the assumption of phase-space being a power-law in radius, this allows us to conclude that equilibrated dark matter structures indeed have zero central velocity anisotropy β0 ≈ 0, a central density slope of α0 ≈ −0.8, and outer anisotropy of ." @default.
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- W1969053310 date "2006-05-19" @default.
- W1969053310 modified "2023-10-16" @default.
- W1969053310 title "The velocity anisotropy—density slope relation" @default.
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- W1969053310 doi "https://doi.org/10.1088/1475-7516/2006/05/014" @default.
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