Special notes of this burst
Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
39.7309 -2.3843 0.0131 43.7 -31.6 2.1962 14.7 TRIG_00605700
------------------------------------------
Foreground time interval of the image:
-16.968 49.032 (delta_t = 66.000 [sec])
Background time interval of the image:
-522.867 -506.088 (delta_t = 16.779 [sec])
-239.968 -19.510 (delta_t = 220.458 [sec])
-17.968 -16.968 (delta_t = 1.000 [sec])
Lightcurves
Notes:
- 1) All plots contain as much data as has been downloaded to date.
- 2) The mask-weighted light curves are using the flight position.
- 3) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 4) For all the mask-weighted lightcurves, the y-axis units are counts/sec/det where a det is 0.4 x 0.4 = 0.16 sq cm.
- 5) The verticle lines correspond to following: green dotted lines are T50 interval, black dotted lines are T90 interval, blue solid line(s) is a spacecraft slew start time, and orange solid line(s) is a spacecraft slew end time.
- 6) Time of each bin is in the middle of the bin.
1 s binning
From T0-310 s to T0+310 s
From T100_start - 20 s to T100_end + 30 s
Full time interval
64 ms binning
Full time interval
From T100_start to T100_end
From T0-5 sec to T0+5 sec
16 ms binning
From T100_start-5 s to T100_start+5 s
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000
8 ms binning
From T100_start-3 s to T100_start+3 s
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000
2 ms binning
From T100_start-1 s to T100_start+1 s
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000
SN=5 or 10 sec. binning (whichever binning is satisfied first)
SN=5 or 10 sec. binning (T < 200 sec)
Spectra
Notes:
- 1) The fitting includes the systematic errors.
- 2) For long bursts, a spectral fit of the pre-slew DRM will introduce some errors in both a spectral shape and a normalization if the PHA file contains a lot of the slew/post-slew time interval.
- 3) For fits to more complicated models (e.g. a power-law over a cutoff power-law), the BAT team has decided to require a chi-square improvement of more than 6 for each extra dof.
- 4) For short bursts (T90<1sec), the specrtum is also fit with Blackbody, OTTB, and Double Blackbody.
Time averaged spectrum fit using the pre-slew DRM
Power-law model
Time interval is from -16.968 sec. to 49.032 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.75278 ( -0.174173 0.178663 )
Norm@50keV : 2.06259E-03 ( -0.00022997 0.000227502 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.79 using 59 PHA bins.
# Reduced chi-squared = 1.102 for 57 degrees of freedom
# Null hypothesis probability = 2.785652e-01
Photon flux (15-150 keV) in 66 sec: 0.279183 ( -0.029655 0.0297085 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.25593e-06 ( -1.43419e-07 1.4464e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -16.968 sec. to 49.032 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.01225 ( -0.904032 0.746471 )
Epeak [keV] : 62.4510 ( -14.828 675.522 )
Norm@50keV : 5.12421E-03 ( -0.00303357 0.0102061 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.95 using 59 PHA bins.
# Reduced chi-squared = 1.070 for 56 degrees of freedom
# Null hypothesis probability = 3.346463e-01
Photon flux (15-150 keV) in 66 sec: 0.271676 ( -0.03072 0.0307 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.19171e-06 ( -1.56948e-07 1.59093e-07 ) ergs/cm2
Band function
Time interval is from -16.968 sec. to 49.032 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.735932 ( -1.11241 5.68283 )
beta : -2.23435 ( 2.23979 0.532903 )
Epeak [keV] : 53.4558 ( -33.1839 119.85 )
Norm@50keV : 7.58124E-03 ( -0.00780857 96.2542 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.50 using 59 PHA bins.
# Reduced chi-squared = 1.082 for 55 degrees of freedom
# Null hypothesis probability = 3.152486e-01
Photon flux (15-150 keV) in 66 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 1.20053e-06 ( -1.20007e-06 -1.55951e-07 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 12.6457 (-1.44219 1.62529)
R^2/D10^2 : 5.68227E-02 (-0.0206619 0.0322103)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 75.06 using 59 PHA bins.
# Reduced chi-squared = 1.317 for 57 degrees of freedom
# Null hypothesis probability = 5.466648e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.272e-07 2.294e-08
25- 50 4.250e-07 5.686e-08
50-150 4.226e-07 9.398e-08
15-150 9.748e-07 1.336e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 117.002 (-37.9009 66.0959)
Norm : 1.18596 (-0.091677 0.202)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.31 using 59 PHA bins.
# Reduced chi-squared = 1.058 for 57 degrees of freedom
# Null hypothesis probability = 3.570886e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.041e-07 2.884e-08
25- 50 3.635e-07 5.303e-08
50-150 6.405e-07 2.539e-07
15-150 1.208e-06 2.996e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.71869 (-2.64206 3.54771)
R1^2/D10^2 : 0.349868 (-0.244511 1.71479)
kT2 [keV] : 20.6596 (-5.82874 41.9056)
R2^2/D10^2 : 6.58906E-03 (-0.0063995 0.0133005)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.47 using 59 PHA bins.
# Reduced chi-squared = 1.100 for 55 degrees of freedom
# Null hypothesis probability = 2.847649e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.955e-07 9.883e-08
25- 50 3.819e-07 1.975e-07
50-150 5.995e-07 3.385e-07
15-150 1.177e-06 5.584e-07
Peak spectrum fit
Power-law model
Time interval is from -4.968 sec. to -3.968 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.19719 ( -0.609517 0.536403 )
Norm@50keV : 6.19983E-03 ( -0.00185337 0.00177652 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.74 using 59 PHA bins.
# Reduced chi-squared = 1.013 for 57 degrees of freedom
# Null hypothesis probability = 4.476170e-01
Photon flux (15-150 keV) in 1 sec: 0.727465 ( -0.228485 0.231217 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.29501e-08 ( -1.82851e-08 1.83377e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -4.968 sec. to -3.968 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.21298 ( -0.762188 0.52153 )
Epeak [keV] : 9999.36 ( -9999.36 -9999.36 )
Norm@50keV : 6.24415E-03 ( -0.0018659 0.013451 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.75 using 59 PHA bins.
# Reduced chi-squared = 1.031 for 56 degrees of freedom
# Null hypothesis probability = 4.102334e-01
Photon flux (15-150 keV) in 1 sec: 0.736683 ( -0.23873 0.222513 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.28799e-08 ( -1.82153e-08 1.80361e-08 ) ergs/cm2
Band function
Time interval is from -4.968 sec. to -3.968 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.516986 ( 0.822133 0.822133 )
beta : -1.21387 ( 1.20246 0.611519 )
Epeak [keV] : 51.0683 ( -51.2007 -51.2007 )
Norm@50keV : 2.08579E-02 ( -0.0214697 437542 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.70 using 59 PHA bins.
# Reduced chi-squared = 1.049 for 55 degrees of freedom
# Null hypothesis probability = 3.757218e-01
Photon flux (15-150 keV) in 1 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 26.5340 (-10.428 24.3507)
R^2/D10^2 : 1.27650E-02 (-0.0126529 0.0514134)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 63.17 using 59 PHA bins.
# Reduced chi-squared = 1.108 for 57 degrees of freedom
# Null hypothesis probability = 2.675572e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.511e-09 9.890e-10
25- 50 8.830e-09 5.550e-09
50-150 4.560e-08 2.841e-08
15-150 5.594e-08 3.460e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.362 (-100.399 -199.363)
Norm : 3.12779 (-0.900555 0.900424)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.69 using 59 PHA bins.
# Reduced chi-squared = 1.047 for 57 degrees of freedom
# Null hypothesis probability = 3.783055e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.789e-09 4.711e-09
25- 50 1.498e-08 9.085e-09
50-150 3.286e-08 1.925e-08
15-150 5.563e-08 3.291e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.08850 (-2.5222 5.23346)
R1^2/D10^2 : 1.51205 (-1.38018 7.15857)
kT2 [keV] : 44.2865 (-20.4781 -44.2963)
R2^2/D10^2 : 2.60209E-03 (-0.00248901 0.0137684)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.92 using 59 PHA bins.
# Reduced chi-squared = 1.017 for 55 degrees of freedom
# Null hypothesis probability = 4.400583e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.215e-09 4.956e-09
25- 50 1.211e-08 7.270e-09
50-150 4.694e-08 2.751e-08
15-150 6.727e-08 3.658e-08
Pre-slew spectrum (Pre-slew PHA with pre-slew DRM)
Power-law model
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.75278 ( -0.174173 0.178663 )
Norm@50keV : 2.06259E-03 ( -0.00022997 0.000227502 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.79 using 59 PHA bins.
# Reduced chi-squared = 1.102 for 57 degrees of freedom
# Null hypothesis probability = 2.785652e-01
Photon flux (15-150 keV) in 66 sec: 0.279183 ( -0.029655 0.0297085 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.25593e-06 ( -1.43419e-07 1.4464e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.01225 ( -0.904032 0.746471 )
Epeak [keV] : 62.4510 ( -14.828 675.522 )
Norm@50keV : 5.12421E-03 ( -0.00303357 0.0102061 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.95 using 59 PHA bins.
# Reduced chi-squared = 1.070 for 56 degrees of freedom
# Null hypothesis probability = 3.346463e-01
Photon flux (15-150 keV) in 66 sec: 0.271676 ( -0.03072 0.0307 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.19171e-06 ( -1.56948e-07 1.59093e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.735932 ( -0.984422 5.68283 )
beta : -2.23435 ( 2.23979 0.532903 )
Epeak [keV] : 53.4558 ( -33.1839 132.53 )
Norm@50keV : 7.58124E-03 ( -0.00780857 96.2542 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.50 using 59 PHA bins.
# Reduced chi-squared = 1.082 for 55 degrees of freedom
# Null hypothesis probability = 3.152486e-01
Photon flux (15-150 keV) in 66 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 1.20053e-06 ( -1.20007e-06 -1.55951e-07 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 3.47e-07
S(50-100 keV) = 4.12e-07
T90 vs. Hardness ratio plot
T90 = 53 sec.
Hardness ratio (energy fluence ratio) = 1.18732
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.33938
Count Ratio (50-100 keV) / (15-25 keV) = 0.876284
Mask shadow pattern
IMX = 8.134409970904773E-01, IMY = 4.997488616090171E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000
Spacecraft aspect plot
Bright source in the pre-burst/pre-slew/post-slew images
Pre-burst image of 15-350 keV band
Time interval of the image:
-522.867410 -506.088000
-239.968000 -19.510400
-17.968000 -16.968000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
308.1956 40.8855 3.8 49.5 158.8 2.0189 3.1 5.6 Cyg X-3
326.3440 38.3652 6.5 35.4 160.4 -0.4905 -1.8 8.5 Cyg X-2
333.9702 12.7631 2.1 27.5 110.4 1.6687 5.5 ------ UNKNOWN
302.2369 48.3687 2.6 54.9 167.4 4.4053 4.4 ------ UNKNOWN
27.5588 4.2016 2.9 29.9 -29.4 0.7790 4.0 ------ UNKNOWN
31.1505 19.8659 2.5 27.7 -62.8 0.9871 4.7 ------ UNKNOWN
49.8386 -14.4757 3.0 58.7 -25.9 4.3668 3.8 ------ UNKNOWN
51.1229 -1.4922 2.8 53.1 -40.2 3.7418 4.1 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-16.968000 49.032000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
307.9466 41.0218 48.1 49.7 159.0 0.0768 0.2 8.5 Cyg X-3
326.2091 38.2031 8.7 35.4 160.0 -0.1754 -1.3 7.3 Cyg X-2
334.3227 38.3485 2.1 29.7 165.3 0.5849 5.6 ------ UNKNOWN
0.8025 13.1752 2.1 7.0 38.1 0.4504 5.4 ------ UNKNOWN
39.7309 -2.3843 0.8 43.7 -31.6 2.1960 14.7 ------ UNKNOWN
43.7062 41.4846 2.0 41.4 -98.8 1.9545 5.7 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
563.432600 962.042000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
83.6267 22.0194 0.3 36.9 -63.2 16.1683 34.0 0.5 Crab
24.3840 1.5845 3.0 41.8 43.0 2.8151 3.9 ------ UNKNOWN
49.6659 -15.8025 2.9 54.9 5.6 5.2821 4.0 ------ UNKNOWN
264.0634 80.9082 4.2 58.4 -175.7 6.6316 2.8 ------ UNKNOWN
58.1316 13.0318 2.3 28.3 -16.6 1.3150 5.1 ------ UNKNOWN
71.0890 -11.0647 2.7 55.5 -20.5 3.8491 4.2 ------ UNKNOWN
111.9557 71.5426 2.9 46.2 -145.2 2.2051 4.1 ------ UNKNOWN
135.2421 69.5052 3.0 54.0 -143.4 5.7476 3.9 ------ UNKNOWN
105.2181 49.2208 2.5 43.2 -113.2 4.8825 4.7 ------ UNKNOWN
Plot creation:
Thu Jul 31 02:31:31 EDT 2014