To find and download HEASARC data in the cloud, you can use astroquery.heasarc or download our new tool, hark.
The HEASARC and NuSTAR teams are greatly saddened by the sudden passing of Katja Pottschmidt. Most recently Katja was the lead scientist for the NuSTAR Guest Observer Facility (GOF), a role she had supported for many years. During her science career she worked on many other high energy astrophysics missions and played an integral role in advancing our knowledge of the universe. She was a wonderful colleague and friend and will be keenly missed by all who knew her.
Next: clumin: calculate luminosity Up: Convolution Model Components Previous: cflux: calculate flux Contents
cglumin: calculate luminosity
A convolution model to calculate the luminosity of other model components, for galactic sources. For example:
cglumin*phabs*(pow + gauss)with the normalization of the power-law model fixed to a non-zero value gives the luminosity and error on the entire model.
phabs*cglumin*(pow + gauss)again with the normalization of the power-law fixed to a non-zero value gives the unabsorbed luminosity and error. Finally,
phabs*(pow + cglumin*gauss)with the normalizaton of the gaussian fixed to a non-zero value gives the luminosity and error on the gaussian component. Note that when the cglumin 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 luminosity is calculated. If the model to which the cglumin 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 source frame energy over which luminosity is calculated. |
| par2=Emax | Maximum source frame energy over which luminosity is calculated. |
| par3=Distance | Distance to the source in units of kpc. |
| par4=lg10Lum | log (base 10) luminosity in units of erg/s. |
Next: clumin: calculate luminosity Up: Convolution Model Components Previous: cflux: calculate flux Contents