Note: The procedures described in this subsection are under testing. Comments are welcome for improvement.
(a) From Physical Variables to Emission
Based on Dulk's (1985) approximation models, the relation between
the physical variables of emitting region and the emission can be
derived.
Inputs; electron temperature (K), line-of-site component
of magnetic field (G), and volume emission measure (cm
)
Outputs; flux density (SFU), circular polarization degree:
IDL> dulk_frfr,te,b_loc,vem,freq,fi,rc 
CR
If the size of emitting source (by solid angle in unit of sterad) is given
additionally, optical depth is also obtained
IDL> dulk_frfr,te,b_loc,vem,freq,fi,rc,omega,tau CR