O VIII Lyman alpha 18.9689 (emissivity-weighted mean of the doublet component) MEG only continuum fit on 18.7:18.8, 19.12:19.3 ======================================================================== Model powerlaw<1> Source No.: 1 Active/On Model Model Component Parameter Unit Value par comp 1 1 powerlaw PhoIndex 2.00000 frozen 2 1 powerlaw norm 2.39791E-03 +/- 6.83816E-04 ________________________________________________________________________ C-statistic = 80.35 using 108 PHA bins and 107 degrees of freedom. Warning: Cstat statistic is only valid for Poisson data. XSPEC12>goodness 1000 nosim 42.80% of realizations are < best fit statistic 80.35 XSPEC12>error 1. 2 Parameter Confidence Range (1.0000000) 2 0.002000 0.002845 (-0.000398,0.000447) XSPEC12>error 2.7 2 Parameter Confidence Range (2.700000) 2 0.001767 0.003163 (-0.000631,0.000766) PLT> wdata /home/cohen/xspec/2007/zpup/oviii_18969_dataonly.dat fit line on 18.80:19.13 N=130 counts: Source File: acis640_pha2.fits{9} Net count rate (cts/s) for Spectrum:1 2.750e-03 +/- 3.403e-04 Assigned to Data Group 1 and Plot Group 1 Noticed Channels: 4568-4632 Telescope: CHANDRA Instrument: ACIS Channel Type: PI Exposure Time: 67636.0078 sec Using Response (RMF) File meg_m1.rmf for Source 1 Using Auxiliary Response (ARF) File acis640MEG_-1_garf.fits Source spectrum counts: 186.000000 Model predicted rate: 2.86841E-03 Source File: acis640_pha2.fits{10} Net count rate (cts/s) for Spectrum:2 8.871e-04 +/- 2.689e-04 Assigned to Data Group 1 and Plot Group 2 Noticed Channels: 4568-4632 Telescope: CHANDRA Instrument: ACIS Channel Type: PI Exposure Time: 67636.0078 sec Using Response (RMF) File meg_p1.rmf for Source 1 Using Auxiliary Response (ARF) File acis640MEG_1_garf.fits Source spectrum counts: 60.000000 Model predicted rate: 7.77902E-04 186 + 60 = 246 ======================================================================== Model windprof<1> + powerlaw<2> Source No.: 1 Active/On Model Model Component Parameter Unit Value par comp 1 1 windprof q 0.0 frozen 2 1 windprof taustar 3.02498 +/- 0.773815 3 1 windprof u0 0.843761 +/- 0.567995 4 1 windprof h 0.0 frozen 5 1 windprof tau0star 0.0 frozen 6 1 windprof beta 1.00000 frozen 7 1 windprof betaSob 0.0 frozen 8 1 windprof numerica 0 frozen 9 1 windprof anisotro 0 frozen 10 1 windprof rosselan 0 frozen 11 1 windprof expansio 0 frozen 12 1 windprof thick 0 frozen 13 1 windprof waveleng "A" 18.9690 frozen 14 1 windprof shift "mA" 0.0 frozen 15 1 windprof velocity "km/s" 2250.00 frozen 16 1 windprof verbose 0 frozen 17 1 windprof norm 3.70262E-04 +/- 5.19891E-05 18 2 powerlaw PhoIndex 2.00000 frozen 19 2 powerlaw norm 2.40000E-03 frozen ________________________________________________________________________ C-statistic = 150.90 using 130 PHA bins and 127 degrees of freedom. Warning: Cstat statistic is only valid for Poisson data. XSPEC12>plot XSPEC12>goodness 1000 nosim 85.90% of realizations are < best fit statistic 150.90 XSPEC12>error 1. 2 Parameter Confidence Range (1.0000000) 2 2.449121 3.541673 (-0.544785,0.547767) XSPEC12>error 2.7 2 Parameter Confidence Range (2.700000) 2 1.945289 3.969794 (-1.061811,0.962694) XSPEC12>error 1. 3 Parameter Confidence Range (1.000000) ***Warning: Parameter pegged at hard limit: 0.99 3 0.628546 0.000000 (-0.244857,-0.873402) XSPEC12>steppar 3 0.6 0.99 39 C-Statistic Delta u0 C-Statistic 3 152.14517 1.08127 0 0.60000 152.07191 1.00800 1 0.61000 151.97966 0.91576 2 0.62000 151.89508 0.83118 3 0.63000 151.81623 0.75232 4 0.64000 151.74180 0.67789 5 0.65000 151.67080 0.60690 6 0.66000 151.60258 0.53867 7 0.67000 151.53604 0.47213 8 0.68000 151.47018 0.40627 9 0.69000 151.40595 0.34205 10 0.70000 151.34490 0.28100 11 0.71000 151.28601 0.22211 12 0.72000 151.22885 0.16495 13 0.73000 151.17694 0.11304 14 0.74000 151.13046 0.06656 15 0.75000 151.08868 0.02477 16 0.76000 151.05236 -0.01154 17 0.77000 151.02307 -0.04083 18 0.78000 151.00041 -0.06350 19 0.79000 150.98414 -0.07977 20 0.80000 150.97400 -0.08990 21 0.81000 150.96991 -0.09400 22 0.82000 150.97206 -0.09185 23 0.83000 150.97956 -0.08435 24 0.84000 150.99052 -0.07338 25 0.85000 151.00547 -0.05843 26 0.86000 151.02500 -0.03890 27 0.87000 151.04520 -0.01870 28 0.88000 151.06530 0.00140 29 0.89000 151.08639 0.02249 30 0.90000 151.10773 0.04383 31 0.91000 151.12590 0.06200 32 0.92000 151.14140 0.07750 33 0.93000 151.15507 0.09116 34 0.94000 151.16601 0.10210 35 0.95000 151.17400 0.11010 36 0.96000 151.17924 0.11533 37 0.97000 151.18175 0.11785 38 0.98000 151.18296 0.11906 39 0.99000 so, yes, 0.629 and 0.99 XSPEC12>steppar 3 0.45 0.6 30 C-Statistic Delta u0 C-Statistic 3 155.16909 4.16430 0 0.45000 155.08660 4.08182 1 0.45500 154.93123 3.92644 2 0.46000 154.78133 3.77655 3 0.46500 154.63681 3.63203 4 0.47000 154.49752 3.49273 5 0.47500 154.36330 3.35851 6 0.48000 154.23374 3.22895 7 0.48500 154.10828 3.10350 8 0.49000 153.98665 2.98186 9 0.49500 153.86856 2.86378 10 0.50000 153.75376 2.74897 11 0.50500 153.64200 2.63721 12 0.51000 153.53303 2.52824 13 0.51500 153.42733 2.42255 14 0.52000 153.32549 2.32070 15 0.52500 153.22715 2.22236 16 0.53000 153.13196 2.12717 17 0.53500 153.03961 2.03482 18 0.54000 152.94978 1.94499 19 0.54500 152.86219 1.85740 20 0.55000 152.77764 1.77285 21 0.55500 152.69730 1.69251 22 0.56000 152.62083 1.61604 23 0.56500 152.54790 1.54311 24 0.57000 152.47821 1.47342 25 0.57500 152.41148 1.40669 26 0.58000 152.34744 1.34265 27 0.58500 152.28630 1.28151 28 0.59000 152.22843 1.22365 29 0.59500 152.17358 1.16879 30 0.60000 0.512 for DeltaC=2.71 XSPEC12>error 1. 17 Parameter Confidence Range (1.000000) 17 0.000344 0.000398 (-0.000033,0.000021) XSPEC12>error 2.7 17 Parameter Confidence Range (2.700000) 17 0.000327 0.000417 (-0.000043,0.000047) XSPEC12>log /home/cohen/xspec/2007/zpup/oviii_18969_smooth_35by35.log Logging to file:/home/cohen/xspec/2007/zpup/oviii_18969_smooth_35by35.log XSPEC12>steppar 2 0.01 4.5 35 3 0.48 0.99 35