qspec.source_energy_pdf  (  f ,  f0 ,  sigma ,  xi ,  collinear = True  )[source]

Parameters:

fNone

Frequency quantiles (arb. units).

f0None

Frequency offset (arb. units).

sigmaNone

The standard deviation of the underlying normal distribution in frequency units ([f]).

xiNone

The proportionality constant between kinetic energy differences and frequency differences ([f]).

collinearNone

Returns:

outNone

PDF of rest frame frequencies after acceleration of thermally and normally distributed kinetic energies.