
par1  , power law photon index 
par2  , efolding energy of exponential rolloff (in keV) 
norm  K in photons/keV/cm/s at 1 keV 
zcutoffpl is a variant which computes a redshifted spectrum using the parameters:
par1  , power law photon index 
par2  , efolding energy of exponential rolloff (in keV) 
par3  , redshift 
norm  K in photons/keV/cm/s at 1 keV in the source frame 
If POW_EMIN and POW_EMAX have been defined by the xset command then the norm becomes the flux in units of ergs/cm/s over the energy range (POW_EMIN, POW_EMAX) keV unless POW_EMIN = POW_EMAX in which case the norm becomes the flux density in microJansky at POW_EMIN keV. In these cases it is important that POW_EMIN and POW_EMAX lie within the energy range on which the model is being evaluated.
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Last modified: Tuesday, 28May2024 10:09:22 EDT