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The XML file for the sources described below, with annotations about the definitions of the parameters, are is available here.
FT1 event files generated for these sources used an FT2 file for a one-week scanning/rocking observation. These files are available here. For all of these FT1 files, I used the random seed 34621 in obsSim.par. There's nothing special about this number, but don't be surprised when you get different gamma rays if you use a different seed. All FT1 files are for the FRONT/BACK (i.e., DC1) response functions.
I can't personally vouch for the correctness of the output for any of these sources. I haven't seen anything that looks obviously wrong yet, but I haven't tried quantitatively studying the numbers of gamma rays that the sources generate and I haven't seriously tried any timing studies.
TransientTemplate (Chiang)
Here is a very simple example of a transient source. Note that observationSim/v5r1p3/xml/obsSim_source_library.xml has more examples of TransientTemplate sources.
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Here is the distribution of arrival times for the gamma rays from this simulation. Note that during the 20 ks that the source is on, the source is seen on 3 different orbits (with 3 different aspect angles). Also shown are the RA and Dec of the LAT z-axis on the same time scale. The count rates are lower for the first and third orbits because the LAT is pointed further away from the source (which has RA, Dec = 80 deg, 20 deg) and because the source has lower flux at those times.
PulsarSpectrum (Omodei & Razzano)
The source below is lifted from celestialSources/Pulsar/v1r0p0/xml/Pulsar_user_library.xml. It more or less describes the Crab for some epoch.
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This source also leaves behind a file called pulsar.root in the directory from which you run obsSim.
Tutorial for PulsarSpectrum
An HTML tutorial page for PulsarSpectrum is available at :
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This page contains a brief description of the emission model used, and how to make PulsarSpectrum available to ObsSim. It also include the steps to follow for generating an example of pulsar.
GalPulsars (Hierath)
There's nothing really to specify in the XML file. All of the information is in the file named in the params attribute, which is human readable. vela.txt is available here, in addition to the repository. The file flux/v8r10p2/sources/pulsars.txt has many more pulsars.
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Note: I do not know right now why this source generated so many fewer gamma rays than the one above (470 vs. 1842). Nominally Vela is brighter. I used the source specifications exactly as they were given in the XML files in the repository.
GRBmanager (Omodei & Cohen-Tanugi?)
The source below is mostly lifted from celestialSources/GRB/v4r0p7/xml/GRB_user_library
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