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29 September 2005
I tried the joint spectral analysis tutorial on GRB using LAT and GBM data. The puzzling results of the analysis on the burst GRB07018417 are on this page http://www.ts.infn.it/~longof/grb_tutorial_5.html
. I have probably to check something in the data I've produced. Or probably there are different spectral components. I discovered that I took a too long period for the LAT data selection resulting in an unphysical low flux. For fitting the data with XSPEC, special care are needed for the initial values. Still the resulting spectrum is not good.
(Longo)