dispersion_from_virial_parameter

cogsworth.hydro.utils.dispersion_from_virial_parameter(alpha_vir, R, M)

Calculate the velocity dispersion from the virial parameter

(Using the virial parameter definition from Bertoldi & McKee (1992) Eq. 2.8a)

Parameters:

alpha_virfloat

Virial parameter

RQuantity [length]

Cluster radius

MQuantity [mass]

Cluster mass

Returns:

v_dispQuantity [speed]

Velocity dispersion