Like blackbody_nu() but for .
in_x : number, array-like, or Quantity
Frequency, wavelength, or wave number. If not a Quantity, it is assumed to be in Angstrom.
temperature : number or Quantity
Blackbody temperature. If not a Quantity, it is assumed to be in Kelvin.
flux : Quantity
Blackbody monochromatic flux in .