brightness_temperature

Physics.Radiation.brightness_temperature(source_function, optical_depth)

Brightness temperature of a gas cloud

Given the source function of the medium, expressed using the Rayleigh Jeans approximation in K (see source_function_K), and the optical depth through the medium, returns the brightness temperature assuming no background continuum emission.

:param source_function : in form of Rayleigh-Jeans approximation in K :type source_function : float

:param optical_depth : :type optical_depth : float

Returns

float