Individual Science Windows Lightcurves

The LCR level of the jemx_science_analysis script produces the lightcurves of the sources from the catalog of sources found in the imaging analysis, jmx2_srcl_res.fits. To obtain the lightcurve of the only found source (Crab) you can give the command

og_create idxSwg=jmx.lst ogid=crab_lc baseDir="./" instrument=JMX2

cd obs/crab_lc

jemx_science_analysis startLevel="COR" endLevel="LCR" skipLevels="SPE" \
   nChanBins=2 chanLow="46 130" chanHigh="129 223" \
   CAT_I_usrCat=user_cat.fits jemxNum=2 LCR_timeStep=100.0

The parameter LCR_timeStep sets the binning time of the light curve in seconds. Selecting nChanBins=2, chanLow="46 130" chanHigh="129 223" we choose to produce the lightcurve in two energy bins: 3-10 keV and 10-35 keV. This is equivalent to select nChanBins=-1 (See Table  ).

Since OSA11, the lightcurve will be extracted by default with the j_ima_iros algorithm. If you want to use instead the ``old'' extraction tool, you have to set the hidden parameter LCR_useIROS=no. It should be noted that if LCR_useIROS=yes, the minimum allowed time step is 0.1s; if the user enters LCR_timeStep s, the value will be changed to the default value of 4s.

As a result for each found source a lightcurve is produced in each energy band. The results are written into the file

scw/RRRRPPPPSSSF.001/jmx2_src_iros_lc.fits

If you instead chose to use the old software to extract the lightcurves, the results will be in the file scw/RRRRPPPPSSSF.001/jmx2_src_lc.fits. The two files (extracted with the new or old software) have the same format.