Hello everyone,
I have been working for a while now on a project (AISRP funded) to
automate X-ray astrophysics analysis. The code is still under
development but I thought some of you might want to play around with it.
If nothing goes wrong, it will reprocess data, detect sources, clean
the bgd. light curve, make an exposure map, fit sources with a simple
spatial model to determine extent and optimal extraction regions,
extract and fit spectra and determine source variability. As a test I
have been running it on a large amount of Chandra data, see
http://xassist.pha.jhu.edu/pipeline/chandra, since my main motivation
was to make a survey tool. Documentation is available in the beta
download and online (see link on main page at
http://xassist.pha.jhu.edu) which may help explain some of the output in
the pipeline. The system was originally developed for rosat and asca
although Chandra usage right now is far ahead of those. I will be
adding XMM-Newton also. By default it only tries to analyze the central
8' of the observation (central meaning whats given in ra_targ, dec_targ)
of a Chandra obs. and will only analyze non-grating ACIS data. It will
also try to make an image with the (bright) point sources subtracted (see
http://xassist.pha.jhu.edu/ximgfit/manual/node17.html) although that
doens't always work at the moment.
Cheers,
Andy Ptak
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