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gamma ray fluxes from galprop https://galprop.stanford.edu/forum/viewtopic.php?f=4&t=38 
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Author:  tibaldo [ Tue Feb 27, 2007 12:56 am ] 
Post subject:  gamma ray fluxes from galprop 
Does galprop give correct gamma ray fluxes? I tried to calculate the total galactic background flux integrating over the the sky and over energies. On the DC2 galprop output (GP_gamma.fits) our routine yielded a result that doesn't match with the declared flux (~19 m^2 s^1) . Is it my fault or did you correct the integral flux to match EGRET measurements? Luigi. 
Author:  strong [ Tue Feb 27, 2007 3:00 am ] 
Post subject:  which energies 
which energies did you integrate over ? typical galprop runs cover a larger range than EGRET. Better would be to compare the spectrum over a region of the inner Galaxy. 
Author:  tibaldo [ Tue Feb 27, 2007 6:57 am ] 
Post subject:  
I integrated over energies from 10 MeV to 660 GeV. In the GP_gamma.fits file you say that the integrated flux over 10 Mev is something like 19 m^2 s^1. I need to know the total flux form other galprop runs to use them in gtobssim, so I wrote a routine to calculate it, but I am disappointed because that routine doesn't give for GP_gamma.fits the flux above. I would like to know if 19 m^2 s^1 is the correct flux from this model (so my program is wrong) or if there is some other trick. Thanks, Luigi Tibaldo. 
Author:  strong [ Tue Feb 27, 2007 7:05 am ] 
Post subject:  GP_gamma.fits 
I am not aware of the GP_gamma.fits format  it is not output from galprop. Is that a GLAST format ? In that case will have to ask whoever generated it. 
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