qspec.normal_vx_pdf  (  vx ,  m ,  t  )[source]

The Gaussian probability density of a velocity component $v_x$ $$ \rho(v_x) = \sqrt{\frac{m}{2\pi k_\mathrm{B}T}}\exp\!\left(-\frac{mv_x^2}{2k_\mathrm{B}T}\right), $$ for a mass $m$ particle in thermal equilibrium at temperature $T$.

Parameters:

vxarray_like

The velocity quantiles $v_x$ (m/s).

marray_like

The mass $m$ of the particle (u).

tarray_like

The temperature $T$ of the environment (K).

Returns:

rho_vxndarray

The probability density in thermal equilibrium at the velocity vx (s/m).