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Please edit this page to include results, issues, advice, etc., or links to these.
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(30 March 2005) Here is an example of GRB analysis using Likelihood and XSPEC Jim Chiang
(19 April 2005) The 20% discrepancy found between Xspec and Likelihood fits in the above report is resolved in this comparison of Xspec and Likelihood results for burst-like transients with known properties Jim Chiang
(8 April 2005) David Band David Band (4/8/05, noon EDT): I worked my way through what will probably be a standard LAT GRB analysis. Thus I extracted the data from the GSSC website, ran gtselect for further selections (e.g., choosing the back of the LAT), ran gtbin to bin the spectra into a PHA file, ran gtrspgen to create a DRM, and then ran XSPEC. Because we need to provide users with 'analysis threads' which walk them through an analysis, I created a thread based on this GRB analysis; see http://glast.gsfc.nasa.gov/ssc/dev/Threads/
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I ran into a number of small problems and bugs, which I reported on JIRA. A few general impressions:
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Since I am working on defining and simulating the GBM data, I also tried the tools on the simulated GBM I posted. Actually, only gtbin and XSPEC are relevant since I created the DRM (=RSP file) with the simulation package. I was able to analyze successfully a background-less burst, but had trouble with a burst with background (I think this is a result of an incorrect exposure--I haven't tracked this down yet).-------------------------------------------------------------------------------
(18 Apr 2005) Tutorial and comments on GRB tools Francesco Longo