initialization.py 文件源码

def fluxdensity_to_luminosity(fluxdensity, wavelength, distance):

    """
    This function ...
    :param fluxdensity:
    :param wavelength:
    :param distance:
    :return:
    """

    luminosity = (fluxdensity * 4. * math.pi * distance ** 2.).to("W/Hz")

    # 3 ways:
    #luminosity_ = luminosity.to("W/micron", equivalencies=spectral_density(wavelength)) # does not work
    luminosity_ = (speed_of_light * luminosity / wavelength**2).to("W/micron")
    luminosity = luminosity.to("W/Hz").value * spectral_factor_hz_to_micron(wavelength) * Unit("W/micron")
    #print(luminosity_, luminosity) # is OK!

    return luminosity

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