** Next:** clumin: calculate luminosity
**Up:** Convolution Model Components
** Previous:** Convolution Model Components

##

cflux: calculate flux

A convolution model to calculate the
flux of other model components. For example:

cflux*phabs*(pow + gauss)

with the normalization of the power-law model fixed to a non-zero value
gives the flux and error on the entire model.
phabs*cflux*(pow + gauss)

again with the normalization of the power-law fixed to a non-zero value
gives the unabsorbed flux and error. Finally,
phabs*(pow + cflux*gauss)

with the normalizaton of the gaussian fixed to a non-zero value gives the
flux and error on the gaussian component. Note that when the cflux model is
used the normalization of one of the additive models **must** be fixed
to a non-zero value. It is also important to ensure that the energy range
over which the model is calculated (which is determined by the response
matrix in use) covers the energy range for which the flux is calculated.
If the model to which the cflux is applied integrates to zero then
a divide-by-zero error will occur resulting in NaN values for the fit statistic.
Parameters are:

par1=Emin |
Minimum energy over which flux is calculated. |

par2=Emax |
Maximum energy over which flux is calculated. |

par3=lg10Flux |
log (base 10) flux in erg/cm/s |

** Next:** clumin: calculate luminosity
**Up:** Convolution Model Components
** Previous:** Convolution Model Components