GRB130514A: Summary Image Light curves Spectra Distribution Others

Analysis Summary

Notes:

• 1) No attempt has been made to eliminate the non-significant decimal places.
• 2) This batgrbproduct analysis is done using the HEASARC data.
• 3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time: Wed Sep 10 21:52:40 EDT 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger555821
======================================================================

  Trigger: 00555821      Segment: 000

  BAT Trigger Time: 390208431.616   [s; MET]
      Trigger Stop: 390208432.64   [s; MET]
               UTC: 2013-05-14T07:13:41.062760    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 296.273538001706   Dec: -7.95591954664214  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.13
     Image Trigger?:     NO
     Rate S/N Ratio:     17.2916164657906  [ if not an image trigger ]
     Image S/N Ratio:    10.13

  Analysis Position:   [ source = BAT ]
    RA: 296.273538001706   Dec: -7.95591954664214  [deg; J2000]

  Refined Position:   [ source = BAT pre-slew burst ]
    RA: 296.278833313921   Dec: -7.973750218839  [deg; J2000]  
        { 19h 45m 06.9s , -07d 58' 25.5" }
         +/- 0.791271440721378 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.260827818961514 [arcmin] (formal 1-sigma fit error)
    SNR: 42.4979203736923
 
  Angular difference between the analysis and refined position is 1.115153 arcmin
 
  Partial Coding Fraction: 0.6015625    [ including projection effects ]

  Duration
     T90: 214.191999971867 +/- 17.3206323126738
        Measured from: 0.819999992847443
                   to: 215.011999964714     [s; relative to TRIGTIME]
     T50: 102.955999970436 +/- 2.85523239359844
        Measured from: 14.5839999914169
                   to: 117.539999961853     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 13.4399999976158     
                   to: 14.4399999976158     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -7.08799999952316     
                   to: 273.643999993801     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     4.944737   5.895868   3.794042   0.864539
           0.115600   0.114052   0.097283   0.081397 [error]
 Peak      0.085101   0.133374   0.103454   0.030414
           0.010341   0.010459   0.009282   0.006936 [error]

     [ fluence units of on-axis counts / fully illuminated detector ] 

======================================================================
 
 
====== Table of the duration information =============================
 
        Value   tstart    tstop
T100  280.732   -7.088  273.644
T90   214.192    0.820  215.012
T50   102.956   14.584  117.540
Peak    1.000   13.440   14.440
 
 
====== Spectral Analysis Summary =====================================
 
Model      : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index   : photon index: E^{Ph_index}
Ph_90err   : 90% error of the photon index
Epeak      : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm       : normalization at 50 keV in both the PL model and CPL model
Nomr_90err : 90% error of the normalization
chi2       : Chi-Squared
dof        : degree of freedo
 
=== Time-averaged spectral analysis ===
(Best model with acceptable fit: PL)
 
Model Ph_index Ph_90err_low Ph_90err_hi  Epeak  Epeak_90err_low  Epeak_90err_hi  Norm       Nomr_90err_low    Norm_90err_hi    chi2    dof
PL      -1.755    -0.052      0.052       -           -               -         3.47e-03     -9.23e-05          9.22e-05      36.250   57
CPL     -1.642    -0.153      0.206      165.529     -74.413      -165.529      3.93e-03     -5.27e-04          9.64e-04      35.300   56
 
 
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: N/A)
 
Model Ph_index Ph_90err_low Ph_90err_hi  Epeak  Epeak_90err_low  Epeak_90err_hi  Norm       Nomr_90err_low    Norm_90err_hi    chi2    dof
PL      -1.497     -0.147     0.147       -           -               -         2.35e-02     -2.11e-03          2.10e-03      72.620   57
CPL     -0.987     -0.559     0.651       99.217     -31.774       -99.217      4.28e-02     -2.00e-02          4.75e-02      70.270   56
 
 
=== Fluence/Peak Flux Summary ===
 
              Model    Band1     Band2     Band3     Band4     Band5     Total
                       15-25     25-50    50-100    100-350    15-150    15-350    keV
Fluence         PL   1.58e-06  2.49e-06  2.95e-06  6.79e-06  9.00e-06  1.38e-05   erg/cm2
      90%_error_low -8.08e-08 -7.25e-08 -1.04e-07 -5.26e-07 -2.45e-07 -5.88e-07   erg/cm2
      90%_error_hi   8.25e-08  7.23e-08  1.03e-07  5.56e-07  2.45e-07  6.10e-07   erg/cm2
Peak flux       PL   9.65e-01  9.73e-01  6.89e-01  7.76e-01  2.93e+00  3.40e+00   ph/cm2/s
      90%_error_low -1.44e-01 -9.40e-02 -7.51e-02 -1.58e-01 -2.68e-01 -3.03e-01   ph/cm2/s
      90%_error_hi   1.51e-01  9.33e-02  7.45e-02  1.81e-01  2.68e-01  3.03e-01   ph/cm2/s
 
Fluence        CPL   1.54e-06  2.51e-06  2.97e-06  5.77e-06  8.91e-06  1.28e-05   erg/cm2
      90%_error_low -1.05e-07 -7.82e-08 -1.09e-07 -1.39e-06 -2.84e-07 -1.42e-06   erg/cm2
      90%_error_hi   1.04e-07  7.87e-08  1.10e-07  1.16e-06  2.83e-07  1.26e-06   erg/cm2
Peak flux      CPL   8.84e-01  1.02e+00  7.21e-01  4.46e-01  2.88e+00  3.07e+00   ph/cm2/s
      90%_error_low -1.68e-01 -1.11e-01 -8.45e-02 -2.03e-01 -2.74e-01 -3.50e-01   ph/cm2/s
      90%_error_hi   1.74e-01  1.14e-01  8.65e-02  3.90e-01  2.74e-01  4.47e-01   ph/cm2/s
 
======================================================================

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  296.2788    -7.9738   0.0045    35.0776  -142.2866         3.7913343     42.498 TRIG_00555821                 
 
Foreground time interval of the image:
 -7.088  14.485 (delta_t =  21.573 [sec])
Background time interval of the image:
-214.315  -7.088 (delta_t = 207.227 [sec])

Light Curves

Note: The mask-weighted lightcurves have units of either count/det or counts/sec/det, where a det is 0.4 x 0.4 = 0.16 sq cm.

Full-time range; 1 s binning

Other quick-look light curves:

• 64 ms binning (zoomed)
• 16 ms binning (zoomed)
• 8 ms binning (zoomed)
• 2 ms binning (zoomed)
• SN=5 or 10 s binning (full-time range)
• Raw light curve

Spectra

Notes:

• 1) The fitting includes the systematic errors.
• 2) When the burst includes telescope slew time periods, the fitting uses an average response file made from multiple 5-s response files through out the slew time plus single time preiod for the non-slew times, and weighted by the total counts in the corresponding time period using addrmf. An average response file is needed becuase a spectral fit using 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.

Time averaged spectrum fit using the average DRM

Power-law model

Time interval is from   -7.088 sec. to  273.644 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.75522     ( -0.0523291   0.0521246 )
Norm@50keV  : 3.47381E-03    ( -9.23006e-05   9.21694e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          36.25 using 59 PHA bins.
# Reduced chi-squared =         0.6359 for     57 degrees of freedom 
# Null hypothesis probability =   9.854800e-01
 
Photon flux (15-150 keV)    in 280.7 sec: 0.470647 ( -0.014041  0.014106 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.99627e-06 ( -2.44567e-07  2.45019e-07 ) ergs/cm2
 

Cutoff power-law model

Time interval is from   -7.088 sec. to  273.644 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.64173     ( -0.153337   0.20625 )
Epeak [keV] : 165.529      ( -74.413 -165.529 )
Norm@50keV  : 3.93206E-03    ( -0.000526599   0.000964043 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          35.30 using 59 PHA bins.
# Reduced chi-squared =         0.6303 for     56 degrees of freedom 
# Null hypothesis probability =   9.861904e-01
 
Photon flux (15-150 keV)    in 280.7 sec: 0.465958 ( -0.016077  0.016173 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.91214e-06 ( -2.84293e-07  2.83296e-07 ) ergs/cm2
 

1-s peak spectrum fit

Power-law model

Time interval is from   13.440 sec. to   14.440 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.49743     ( -0.147365   0.146923 )
Norm@50keV  : 2.35005E-02    ( -0.00210805   0.00210309 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.62 using 59 PHA bins.
# Reduced chi-squared =          1.274 for     57 degrees of freedom 
# Null hypothesis probability =   7.944453e-02
 
Photon flux (15-150 keV)    in 1 sec: 2.93184 ( -0.26782  0.26831 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.23059e-07 ( -2.14639e-08  2.16162e-08 ) ergs/cm2
 

Cutoff power-law model

Time interval is from   13.440 sec. to   14.440 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.986994     ( -0.558999   0.6514 )
Epeak [keV] : 99.2172      ( -31.7753 -99.2187 )
Norm@50keV  : 4.27886E-02    ( -0.0199966   0.0475154 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.27 using 59 PHA bins.
# Reduced chi-squared =          1.255 for     56 degrees of freedom 
# Null hypothesis probability =   9.502732e-02
 
Photon flux (15-150 keV)    in 1 sec: 2.88056 ( -0.27409  0.27432 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.15814e-07 ( -2.33897e-08  2.32367e-08 ) ergs/cm2
 

Time-resolved spectra

Distribution

T90 vs. Hardness ratio plot

T90                                   = 214.192 sec.
Hardness ratio (energy fluence ratio) = 1.1849502525

S(15-50 keV) vs. S(50-150 keV) plot

S(15-50 keV)  = 4.073007e-06
S(50-150 keV) = 4.923367e-06

The dash-dotted line and the dashed line traces the fluences calculated from the Band function with Epeak = 15 and 150 keV, respectively. Both lines assume a canonical values of alpha = -1 and beta = -2.5.

Mask shadow pattern

IMX = -5.555198484791486E-01, IMY = 4.295616410294206E-01

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:
-214.315410 -7.088000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
244.9807 -15.6473    0.5  23.8   98.0   8.1782  24.9    0.4	Sco X-1                       
255.8779 -37.9674   71.2  12.5   20.0   0.0350   0.2    9.0	4U 1700-377                   
256.4809 -36.4266    2.0  11.2   24.1   1.2946   5.9    2.2	GX 349+2                      
263.2147 -24.6811    7.2   5.1  124.3   0.3762   1.6   11.9	GX 1+4                        
264.7025 -44.4031    5.0  15.5  -16.9   0.5047   2.3    3.3	4U 1735-44                    
268.3806  -1.5843    4.2  27.4  162.9   0.7340   2.7    7.9	SW J1753.5-0127               
270.1159 -25.0965    5.9   5.1 -160.0  -0.4681  -2.0    9.2	GX 5-1                        
270.2161 -25.7182    9.1   4.7 -154.3   0.3156   1.3    4.9	GRS 1758-258                  
273.8971 -13.8982    5.8  16.6 -175.1   0.4488   2.0   10.4	GX 17+2                       
275.8753 -30.2948    4.2   8.3 -100.0   0.5785   2.8    5.0	H1820-303                     
285.2274 -24.8144    0.0  17.3 -120.9   0.1300   0.5   12.2	HT1900.1-2455                 
288.7943  10.9813    2.4  45.4 -169.8   2.0498   4.8    2.2	GRS 1915+105                  
263.0832 -34.0315    0.0   5.8    6.8   0.1169   0.5   12.7	GX 354-0                      
298.2646  19.6692    3.4  57.5 -165.4   3.7802   3.4 ------	UNKNOWN                       
302.3554  19.4395    3.7  59.6 -161.5   5.9150   3.1 ------	UNKNOWN                       
303.3878  17.6056    3.9  58.7 -159.3   4.9382   3.0 ------	UNKNOWN                       
303.1308 -42.4534    3.0  32.4  -76.9   1.4524   3.9 ------	UNKNOWN                       
322.0499 -68.4583    4.0  50.8  -44.5   4.1686   2.9 ------	UNKNOWN                       

Pre-slew background subtracted image of 15-350 keV band

Time interval of the image:
-7.088000 14.484590
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
244.9387 -15.7757   14.2  23.8   97.6  -0.0781  -0.8    8.5	Sco X-1                       
255.9182 -37.6469   71.0  12.3   21.0   0.0113   0.2   12.3	4U 1700-377                   
256.4336 -36.4825    9.9  11.2   24.0   0.0810   1.2    3.6	GX 349+2                      
262.9217 -24.5498    0.0   5.4  122.7  -0.0380  -0.6   12.7	GX 1+4                        
265.0133 -44.3662    0.0  15.4  -17.8  -0.1065  -1.6   12.6	4U 1735-44                    
268.5150  -1.4225   15.2  27.6  163.1  -0.0617  -0.8    9.0	SW J1753.5-0127               
270.3513 -25.1164    4.6   5.2 -158.0   0.1663   2.6    4.3	GX 5-1                        
270.4095 -25.7271    4.8   4.8 -152.7  -0.1658  -2.6    5.9	GRS 1758-258                  
273.8623 -14.1473   10.9  16.4 -174.9  -0.0747  -1.1   10.7	GX 17+2                       
275.9827 -30.3381    5.7   8.4  -99.8   0.1421   2.0    3.5	H1820-303                     
285.0449 -24.7728    6.2  17.1 -121.2   0.1333   1.9    8.9	HT1900.1-2455                 
288.9051  10.9239    6.8  45.4 -169.6   0.2122   1.7    6.4	GRS 1915+105                  
263.1859 -33.8322    4.3   5.6    7.1   0.1747   2.7    9.8	GX 354-0                      
284.9992  13.0379    2.6  45.7 -175.7   0.5477   4.4 ------	UNKNOWN                       
296.2788  -7.9737    0.3  35.1 -142.3   3.7914  42.5 ------	UNKNOWN                       
304.2812  15.4206    2.4  57.5 -156.9   1.6968   4.9 ------	UNKNOWN                       
304.5168 -86.5001    2.3  58.3  -24.0   2.0579   5.0 ------	UNKNOWN                       

Post-slew image of 15-350 keV band

Time interval of the image:
77.484600 838.757100
840.384000 899.036100
900.384000 962.445800
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
262.8265 -24.6603    5.2  36.0   75.5  -3.9000  -2.2   11.2	GX 1+4                        
264.7885 -44.5059   61.7  45.6   48.6  -0.4453  -0.2    3.9	4U 1735-44                    
268.2225  -1.4698    5.4  28.7  118.8   2.1188   2.1    8.8	SW J1753.5-0127               
270.2505 -24.9829   31.3  30.1   69.6  -0.4157  -0.4    6.1	GX 5-1                        
270.3188 -25.8745    4.4  30.5   68.0   3.0580   2.6    7.9	GRS 1758-258                  
274.0342 -14.0842    2.6  22.7   89.5   3.5970   4.4    3.3	GX 17+2                       
275.9372 -30.4472    5.6  29.5   54.7   2.0067   2.1    4.9	H1820-303                     
284.8989 -25.0178    5.3  20.2   48.3   1.5039   2.2    9.5	HT1900.1-2455                 
288.8168  10.9380    0.8  20.3  175.6   9.4514  14.0    1.2	GRS 1915+105                  
299.5855  35.1768    3.4  43.3 -158.9   4.1291   3.4    1.5	Cyg X-1                       
308.0409  40.9362    3.0  50.1 -151.3   6.6494   3.9    3.3	Cyg X-3                       
263.1377 -33.7157    0.0  39.9   62.2   4.3197   2.0   10.3	GX 354-0                      
291.2825 -20.6954    2.6  13.6   37.4   2.9625   4.5 ------	UNKNOWN                       
303.7133 -47.1409    2.6  39.7    9.2   4.6292   4.4 ------	UNKNOWN                       
296.2718  -7.9372    1.2   0.0 -179.6   5.9019   9.3 ------	UNKNOWN                       
306.6231 -28.4970    3.9  22.7   -7.0   1.8374   3.0 ------	UNKNOWN