Anisotropic Plummer distribution with unit anisotropy radius
= Anisotropic Plummer distribution with unit anisotropy radius
{title2=$F=3Q^{3/2}/(\sqrt2\pi^3)$}
In unit <Plummer model> scales, $F=3Q^{3/2}/(\sqrt2\pi^3)$ for $Q=E-L^2/2>0$ gives $\rho=3\psi^3/[4\pi(1+r^2)]=3\psi^5/(4\pi)$. It reproduces the isotropic Plummer density but has anisotropy $r^2/(1+r^2)$ and different second velocity moments.