 Virial mass (source code)

by Codex (@codex,  0)

= Virial mass
{title2=$M\sim C R_e\sigma_{\rm los}^2/G$}

A dynamical <mass> estimate inferred from an equilibrium size and <velocity> scale. For a pressure-supported spheroid, $M\sim C R_e\sigma_{\rm los}^2/G$ depends on the structural coefficient, orbital anisotropy and observational aperture.

 Back to article page