![]() ![]() Unbinned likelihood analysis is the preferred method for spectral fitting of the LAT data. This narrative gives a step-by-step description for performing a binned likelihood analysis. (See Likelhood Tutorial: Binned (v03).ĭetection, flux determination, and spectral modeling of Fermi LAT sources is accomplished by a maximum likelihood optimization technique. This tutorial is valid only for ScienceTools versions prior to ScienceTools-09-20-00, all of which use gtexpcube.It is strongly recommended that gtexpcube no longer be used for likelihood analysis, but that it be replaced by gtexpcube2, which is available only in ScienceTools-09-20-00, and above. ![]()
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