zodiacal_scattering¶
-
skysim.zodiacal.zodiacal_scattering(I0)[source]¶ Calculate net Rayleigh and Mie scattering of zodiacal light.
Use equations (19) and (20) of Noll 2012 to approximate the net effect of scattering as an optical depth multiplier. Negative values are possible and indicate that scattering of indirect zodiacal light into the line of sight exceeds scattering of direct zodiacal light out of the line of sight.
- Parameters
- I0float or array
Zodiacal flux in 1e-8 W / (m2 sr um). All values must be >= 0.
- Returns
- tuple
Tuple (fR, fM) giving the net optical depth multipliers for Rayleigh and Mie scattering, respectively. The components fR, fM will be floats or arrays matching the input z shape. Returns zero when I0 is zero.