XSPEC version: 12.13.1 Build Date/Time: Thu Jul 20 16:52:54 2023 XSPEC12>query no XSPEC12>data 1:1 sw01299088000b_avg.pha 1 spectrum in use Spectral Data File: sw01299088000b_avg.pha Spectrum 1 Net count rate (cts/s) for Spectrum:1 1.052e-01 +/- 6.893e-03 Assigned to Data Group 1 and Plot Group 1 Noticed Channels: 1-80 Telescope: SWIFT Instrument: BAT Channel Type: PI Exposure Time: 108.3 sec Using fit statistic: chi No response loaded. ***Warning! One or more spectra are missing responses, and are not suitable for fit. XSPEC12>response 1 sw01299088000b_avg.rsp Response successfully loaded. XSPEC12>ignore **-13.0 150.0-** 3 channels (1-3) ignored in spectrum # 1 18 channels (63-80) ignored in spectrum # 1 XSPEC12>model bremss Input parameter value, delta, min, bot, top, and max values for ... 7 0.05( 0.07) 0.0001 0.0001 100 200 1:bremss:kT>7.0000 5.00000E-02 1.00000E-04 1.00000E-04 100.00 200.00 1 0.01( 0.01) 0 0 1e+20 1e+24 2:bremss:norm>1.0000 1.00000E-02 0.0000 0.0000 1.00000E+24 1.00000E+24 ======================================================================== Model bremss<1> Source No.: 1 Active/On Model Model Component Parameter Unit Value par comp 1 1 bremss kT keV 7.00000 +/- 0.0 2 1 bremss norm 1.00000 +/- 0.0 ________________________________________________________________________ Fit statistic : Chi-Squared 686.08 using 59 bins. Test statistic : Chi-Squared 686.08 using 59 bins. Null hypothesis probability of 1.05e-108 with 57 degrees of freedom Current data and model not fit yet. XSPEC12>fit Parameters Chi-Squared |beta|/N Lvl 1:kT 2:norm 474.204 4.043 -2 14.4426 11.0079 331.217 3.79726 -3 41.8600 3.15757 314.049 16.8916 -4 198.769 1.40475 86.1106 51.4219 -5 199.314 3.31817 86.0617 8.09965 -6 199.350 3.31944 86.0578 8.0703 -7 199.359 3.31950 ============================== Variances and Principal Axes 1 2 2.2077E-02| 0.0010 1.0000 6.0880E+03| 1.0000 -0.0010 ------------------------------ ======================== Covariance Matrix 1 2 6.088e+03 -6.392e+00 -6.392e+00 2.879e-02 ------------------------ ======================================================================== Model bremss<1> Source No.: 1 Active/On Model Model Component Parameter Unit Value par comp 1 1 bremss kT keV 199.359 +/- 78.0256 2 1 bremss norm 3.31950 +/- 0.169667 ________________________________________________________________________ Fit statistic : Chi-Squared 86.06 using 59 bins. Test statistic : Chi-Squared 86.06 using 59 bins. Null hypothesis probability of 7.73e-03 with 57 degrees of freedom XSPEC12>fit Parameters Chi-Squared |beta|/N Lvl 1:kT 2:norm 80.3082 0.0307581 0 199.363 3.67349 ============================== Variances and Principal Axes 1 2 2.2077E-02| 0.0012 1.0000 4.9982E+03| 1.0000 -0.0012 ------------------------------ ======================== Covariance Matrix 1 2 4.998e+03 -5.791e+00 -5.791e+00 2.879e-02 ------------------------ ======================================================================== Model bremss<1> Source No.: 1 Active/On Model Model Component Parameter Unit Value par comp 1 1 bremss kT keV 199.363 +/- 70.6978 2 1 bremss norm 3.67349 +/- 0.169666 ________________________________________________________________________ Fit statistic : Chi-Squared 80.31 using 59 bins. Test statistic : Chi-Squared 80.31 using 59 bins. Null hypothesis probability of 2.27e-02 with 57 degrees of freedom XSPEC12>fit 100 Parameters Chi-Squared |beta|/N Lvl 1:kT 2:norm 80.308 0.0307064 1 199.363 3.67572 ============================== Variances and Principal Axes 1 2 2.2076E-02| 0.0012 1.0000 5.0148E+03| 1.0000 -0.0012 ------------------------------ ======================== Covariance Matrix 1 2 5.015e+03 -5.801e+00 -5.801e+00 2.879e-02 ------------------------ ======================================================================== Model bremss<1> Source No.: 1 Active/On Model Model Component Parameter Unit Value par comp 1 1 bremss kT keV 199.363 +/- 70.8149 2 1 bremss norm 3.67572 +/- 0.169664 ________________________________________________________________________ Fit statistic : Chi-Squared 80.31 using 59 bins. Test statistic : Chi-Squared 80.31 using 59 bins. Null hypothesis probability of 2.27e-02 with 57 degrees of freedom XSPEC12>log bat_spec_brems.log Logging to file:bat_spec_brems.log XSPEC12>show XSPEC version: 12.13.1 Fri Jun 20 01:45:39 2025 Auto-saving is done after every command. Fit statistic in use: Chi-Squared Minimization technique: Levenberg-Marquardt Convergence criterion = 0.01 Parameter fit deltas: 0.01 * parValue Using chain rule to calculate statistic derivatives (faster method). Querying disabled - will not continue fitting. Prefit-renorming enabled. Solar abundance table: angr Photoionization Cross-Section Table: bcmc: Balucinska-Church and McCammon, 1998 Cosmology in use: H0 = 70 q0 = 0 Lambda0 = 0.73 Model data directory: /software/lheasoft/release6.32/x86_64-pc-linux-gnu-libc2.12/../spectral/manager/../modelData/ Plot settings: Showing of individual additive components is OFF. Showing of background spectra is OFF. Effective area normalization is OFF. Current unit settings: Energy = keV Wavelength = angstrom, with Y-Axis displayed per Hz X-Axis data display mode: Channels Spectra plots will be shifted to source frame by redshift value z: 0 Device: /null Plotting of line IDs is OFF. Splashpage is ON. xlog for data plots is ON. ylog for data plots is OFF. Default plot rebin settings for all plot groups: Min. Signif. Max. # Bins Error Type 0.00000 1 quad Responses read: sw01299088000b_avg.rsp associated with spectrum 1 source 1 energies: 204 channels: 80 Distinct RMF files: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1299088/remake_spec_cflux/spec_T100/sw01299088000b_avg.rsp 1 file 1 spectrum Spectrum 1 Spectral Data File: sw01299088000b_avg.pha Net count rate (cts/s) for Spectrum:1 9.448e-02 +/- 4.174e-03 Assigned to Data Group 1 and Plot Group 1 Noticed Channels: 4-62 Telescope: SWIFT Instrument: BAT Channel Type: PI Exposure Time: 108.3 sec Using fit statistic: chi Using Response (RMF) File sw01299088000b_avg.rsp for Source 1 Spectral data counts: 10.2276 Model predicted rate: 9.40962E-02 Current model list: ======================================================================== Model bremss<1> Source No.: 1 Active/On Model Model Component Parameter Unit Value par comp 1 1 bremss kT keV 199.363 +/- 70.8149 2 1 bremss norm 3.67572 +/- 0.169664 ________________________________________________________________________ Using energies from responses. Fit statistic : Chi-Squared 80.31 using 59 bins. Test statistic : Chi-Squared 80.31 using 59 bins. Null hypothesis probability of 2.27e-02 with 57 degrees of freedom Bayes is off XSPEC12>flux 15.0 25.0 err 500 90 Parameter distribution is derived from fit covariance matrix. Model Flux 0.29415 photons (9.1529e-09 ergs/cm^2/s) range (15.000 - 25.000 keV) Error range 0.2713 - 0.3215 (8.439e-09 - 9.983e-09) (90.00% confidence) XSPEC12>flux 25.0 50.0 err 500 90 Parameter distribution is derived from fit covariance matrix. Model Flux 0.31056 photons (1.7607e-08 ergs/cm^2/s) range (25.000 - 50.000 keV) Error range 0.2810 - 0.3306 (1.582e-08 - 1.874e-08) (90.00% confidence) XSPEC12>flux 50.0 150.0 err 500 90 Parameter distribution is derived from fit covariance matrix. Model Flux 0.28652 photons (3.8615e-08 ergs/cm^2/s) range (50.000 - 150.00 keV) Error range 0.1864 - 0.3056 (2.353e-08 - 4.118e-08) (90.00% confidence) XSPEC12>flux 15.0 150.0 err 500 90 Parameter distribution is derived from fit covariance matrix. Model Flux 0.89123 photons (6.5375e-08 ergs/cm^2/s) range (15.000 - 150.00 keV) Error range 0.7586 - 0.9566 (4.800e-08 - 7.005e-08) (90.00% confidence) XSPEC12>error 1 Parameter Confidence Range (2.706) Parameters Chi-Squared |beta|/N Lvl 1:kT 2:norm 80.1907 0.026616 0 200.000 3.67310 80.1906 0.0868067 0 200.000 3.67405 80.1906 0.0317311 2 200.000 3.67405 ============================== Variances and Principal Axes 1 2 2.2063E-02| 0.0009 1.0000 8.7840E+03| 1.0000 -0.0009 ------------------------------ ======================== Covariance Matrix 1 2 8.784e+03 -7.653e+00 -7.653e+00 2.873e-02 ------------------------ ======================================================================== Model bremss<1> Source No.: 1 Active/On Model Model Component Parameter Unit Value par comp 1 1 bremss kT keV 200.000 +/- 93.7232 2 1 bremss norm 3.67405 +/- 0.169501 ________________________________________________________________________ Fit statistic : Chi-Squared 80.19 using 59 bins. Test statistic : Chi-Squared 80.19 using 59 bins. Null hypothesis probability of 2.31e-02 with 57 degrees of freedom ***Warning: New best fit found, fit parameters will be set to new values. ***Warning: Number of trials exceeded before bracketing of delta fit-stat. Last attempt: 199.363, with delta statistic: 0.117414 *** Parameter lower bound is INVALID. ***Warning: Number of trials exceeded before bracketing of delta fit-stat. Last attempt: 200, with delta statistic: 0 *** Parameter upper bound is INVALID. 1 186.014 0 (-13.9863,-200) XSPEC12>error 2 Parameter Confidence Range (2.706) 2 3.43067 3.91935 (-0.244343,0.244343) XSPEC12>log none Log file closed logging switched off XSPEC12>setplot energy XSPEC12>setplot command sc white 1 XSPEC12>setplot command cpd bat_spec_brems.gif/gif 2 XSPEC12>plot ldata delchi XSPEC12>/* XSPEC12>exit XSPEC: quit Spectral model: thermal bremsstrahlung ------------------------------------------------------------ Parameters : value Lower 90% Upper 90% kT [keV] : 200.000 (-13.9863 -200) Norm : 3.67405 (-0.244343 0.244343) ------------------------------------------------------------ #Fit statistic : Chi-Squared 80.19 using 59 bins. Reduced chi-squared = # Null hypothesis probability of 2.31e-02 with 57 degrees of freedom Energy Fluence 90% Error [keV] [erg/cm2] [erg/cm2] 15- 25 9.913e-07 8.361e-08 25- 50 1.907e-06 1.581e-07 50-150 4.182e-06 9.557e-07 15-150 7.080e-06 1.194e-06