dph Fri Dec 21 16:31:05 2001
Plots below show comparisons of LETG/HRC-S data (obsid 01715 = Mrk 421) ARFs made with new QE and QE-Uniformity files (QEU), and ARFs made with previous QE and QEU (uniform) fil%%(diary-block 26 12 2001 28 12 2001) es. Direct inspection of the new QEU is done by making ARFS with the new QE (on-axis), but with old QEU (uniform) and taking the ratio.
NOTE: There is no "fit" to the data. The counts spectrum is shown for comparison of overall shape and of gap/edge locations.
The new trial Analysis Reference Data (ARD) files are:
hrcsD1999-07-22qeN0005.fits
hrcsD1999-07-22qeuN0003.fits
To use these with mkgarf (or other CIAO tools), set these ardlib.par parameters as follows:
#--------------------------------------------------------------------------- # AXAF HRC-S #--------------------------------------------------------------------------- AXAF_HRC-S1_QE_FILE,f,a, "./Ard/hrcsD1999-07-22qeN0005.fits[AXAF_QE1]",,,"Enter HRC-S1 Mean QE file" AXAF_HRC-S2_QE_FILE,f,a, "./Ard/hrcsD1999-07-22qeN0005.fits[AXAF_QE2]",,,"Enter HRC-S2 Mean QE file" AXAF_HRC-S3_QE_FILE,f,a, "./Ard/hrcsD1999-07-22qeN0005.fits[AXAF_QE3]",,,"Enter HRC-S3 Mean QE file" AXAF_HRC-S1_QEU_FILE,f,a,"./Ard/hrcsD1999-07-22qeuN0003.fits[AXAF_QEU1]",,,"Enter HRC-S1 QE Uniformity file" AXAF_HRC-S2_QEU_FILE,f,a,"./Ard/hrcsD1999-07-22qeuN0003.fits[AXAF_QEU2]",,,"Enter HRC-S2 QE Uniformity file" AXAF_HRC-S3_QEU_FILE,f,a,"./Ard/hrcsD1999-07-22qeuN0003.fits[AXAF_QEU3]",,,"Enter HRC-S3 QE Uniformity file"
The new and old ARFs are:
hrcf01715_003N001LEG_-1_garf-new.fits
hrcf01715_003N001LEG_1_garf-new.fits
hrcf01715_003N001LEG_-1_garf-old.fits
hrcf01715_003N001LEG_1_garf-old.fits
The new QE, but uniform QEU ARFs are:
hrcf01715_003N001LEG_-1_garf-unewq.fits
hrcf01715_003N001LEG_1_garf-unewq.fits
Minus orders, short wavelengths:
Minus orders, long wavelengths:
Plus orders, short wavelengths:
Plus orders, long wavelengths:
Ratio of new/old:
Comparison of plus and minus orders:
Ratio of new (qe*qeu/qe):
Local (to some) links to top analysis tree w/ supporting data:
/nfs/wiwaxia/d1/dph/CXC/Test_ciao_2/LETGS/
(@MIT)
/data/da/testing/mkgarf/LETGS/
(@CfA)
Primary supporting data are:
PHA file: hrcf01715_002N001_pha2.fits
Aspect file: hrcf01715_002N001_aoff1.fits
Events file: hrcf01715_002N001_evt2.fits