A power law with pegged normalization.
where :
par1 | , photon index of power law (dimensionless) |
par2 | lower peg energy range (keV) |
par3 | upper peg energy range (keV) |
norm | flux (in units of ergs/cm/s over the energy par2-par3). If par2 = par3, it is the flux in micro-Jy at par2. |