Fermi GBM Science
XRB-related publications from the Gamma-Ray Astronomy team are listed here.

 

GBM Untriggered Gamma-ray Bursts

The untriggered gamma-ray bursts (uGRB) are hard (index > -2.5) events that are isotropically distributed on the sky due to their extragalactic origin. The uGRBs are either GBM sub-threshold trigger events or events which occur when triggering is disabled (rare occurrence). Their spectra are well fit with a Band function (Band et al. (1993)) or power-law with an exponential cut-off function that is typical of GRBs. Parameters from the spectral fits using the Band function were typically not well constrained and are not reported. The XRB search is sensitive to long GRBs that are associated with a core collapse progenitor. The spectral results for the power-law and power-law with exponential cut-off are summarized in the table below. These results are preliminary. Please contact Peter Jenke for further information.

GBM Detected Type 1 X-ray Burst Candidates
Event ID
& GBM link
Date yy/mm/dd Time UT Ra (deg) Dec (deg) error (deg) EPeak (keV) Comp flux 10E-8 erg cm^-22 s^-1 Comp fluence 10E-7 erg cm^-2 PL index PL flux 10E-8 erg cm^-22 s^-1 PL fluence 10E-7 erg cm^-2 Rise (s) Decay (s) Duration (s) Structure
10031206566 10/03/12 01:49:26.00 94.6 71.7 6.7 48148.250000 +/- 7221517. 7.17 +/- 0.90 20.5 +/- 2.5 -1.675 +/- 0.064 7.82 +/- 0.85 22.3 +/- 2.4 9.38 10.67 21.34 S
10040364545 10/04/03 17:55:45.00 67.2 -13.4 9.8 63.8 +/- 10. 5.09 +/- 0.56 14.5 +/- 1.6 -1.577 +/- 0.099 13.3 +/- 2.6 38.2 +/- 7.5 3.48 21.87 27.25 S
10041528253 10/04/15 07:50:53.00 261.6 47.8 2.1 24.2 +/- 2.0 2.28 +/- 0.23 17.7 +/- 1.8 -2.17 +/- 0.15 4.28 +/- 0.96 33.2 +/- 7.4 28.38 95.49 125.40 S
10041565751 10/04/15 18:15:51.00 272.7 -19.1 4.9 92.0 +/- 12. 7.99 +/- 0.72 22.8 +/- 2.0 -1.595 +/- 0.057 15.3 +/- 1.4 43.8 +/- 4.2 7.65 9.79 19.38 S
10053085348 10/05/30 23:42:28.00 163.1 78.4 5.1 67.9 +/- 6.3 3.41 +/- 0.24 23.7 +/- 1.7 -1.681 +/- 0.055 6.67 +/- 0.65 46.3 +/- 4.5 36.46 35.20 73.45 M
10061952028 10/06/19 14:27:08.00 116.5 4.2 5.2 - - - -2.17 +/- 0.11 9.1 +/- 1.4 7.4 +/- 1.1 1.75 3.71 5.80 S
10062847601 10/06/28 13:13:21.00 358.8 69.1 1.0 125.6 +/- 7.0 15.91 +/- 0.62 136.3 +/- 5.3 -1.492 +/- 0.020 28.55 +/- 0.96 244.6 +/- 8.2 24.75 63.99 101.82 S
10071023190 10/07/10 06:26:30.00 299.8 -45.0 12.5 69.9 +/- 8.5 5.14 +/- 0.47 10.50 +/- 0.97 -1.725 +/- 0.070 9.4 +/- 1.0 19.3 +/- 2.1 9.29 5.32 15.33 M
10071069939 10/07/10 19:25:39.00 89.9 -84.0 5.4 62.6 +/- 11. 3.94 +/- 0.44 9.6 +/- 1.0 -1.799 +/- 0.075 6.94 +/- 0.89 16.9 +/- 2.1 5.52 8.74 14.66 M
10071369978 10/07/13 19:26:18.00 290.2 68.3 15.9 46.5 +/- 15. 3.46 +/- 0.63 7.0 +/- 1.3 -1.99 +/- 0.12 5.18 +/- 0.99 10.5 +/- 2.0 14.30 7.95 23.36 M
10072541217 10/07/25 11:26:57.00 313.8 76.8 1.2 112.7 +/- 18. 13.3 +/- 1.0 65.4 +/- 5.3 -1.664 +/- 0.033 21.6 +/- 1.2 105.9 +/- 6.1 17.89 23.18 42.92 M
10081137599 10/08/11 10:26:39.00 87.7 35.0 9.4 - - - -2.023 +/- 0.096 5.32 +/- 0.77 10.8 +/- 1.5 2.32 21.29 25.42 M
10081242175 10/08/12 11:42:55.00 189.0 -61.2 3.2 26.2 +/- 1.8 1.71 +/- 0.15 10.51 +/- 0.92 -2.03 +/- 0.12 3.72 +/- 0.77 22.8 +/- 4.7 33.54 23.73 58.50 M
10081624089 10/08/16 06:41:29.00 164.0 37.1 3.7 50.0 +/- 4.9 6.12 +/- 0.37 22.5 +/- 1.3 -1.910 +/- 0.042 10.11 +/- 0.71 37.1 +/- 2.6 25.64 22.73 50.41 M
10081718364 10/08/17 05:06:04.00 42.6 -22.7 12.9 33.9 +/- 5.7 3.67 +/- 0.52 4.49 +/- 0.64 -1.94 +/- 0.16 3.49 +/- 0.37 4.27 +/- 0.45 6.15 4.65 11.34 S
10090270542 10/09/02 19:35:42.00 41.6 26.4 6.6 84.1 +/- 13. 5.43 +/- 0.46 33.2 +/- 2.8 -1.626 +/- 0.061 7.15 +/- 0.74 43.8 +/- 4.5 66.63 21.37 95.72 M
10092473690 10/09/24 20:28:10.00 184.4 45.0 7.4 51.3 +/- 15. 3.43 +/- 0.50 19.6 +/- 2.8 -1.990 +/- 0.074 4.60 +/- 0.54 26.2 +/- 3.1 8.48 63.28 80.96 M
10092635620 10/09/26 09:53:40.00 248.4 26.9 9.4 153.3 +/- 62. 2.82 +/- 0.66 23.0 +/- 5.4 -1.497 +/- 0.096 4.77 +/- 0.71 38.9 +/- 5.8 11.47 8.34 24.78 S
10092955416 10/09/29 15:23:36.00 50.5 -14.8 6.1 90.3 +/- 6.8 7.80 +/- 0.45 117.8 +/- 6.8 -1.563 +/- 0.037 14.86 +/- 0.97 224.3 +/- 14. 71.76 82.78 164.98 S
10100209542 10/10/02 02:39:02.00 129.4 -37.7 7.8 35.5 +/- 15. 2.57 +/- 0.77 2.10 +/- 0.63 -1.95 +/- 0.16 4.6 +/- 1.2 3.8 +/- 1.0 9.78 20.89 32.99 S
10100633055 10/10/06 09:10:55.00 318.7 50.5 3.4 24.4 +/- 6.8 1.96 +/- 0.24 16.0 +/- 2.0 -2.10 +/- 0.11 3.32 +/- 0.53 27.1 +/- 4.3 17.17 74.91 96.94 S
10101041428 10/10/10 11:30:28.00 233.4 -59.3 9.4 - - - -2.31 +/- 0.17 1.63 +/- 0.25 3.33 +/- 0.52 13.52 14.75 30.91 S
10102415071 10/10/24 04:11:11.00 275.6 40.2 4.8 - - - -2.29 +/- 0.10 3.64 +/- 0.47 29.7 +/- 3.8 20.76 31.32 61.53 S
10110332910 10/11/03 09:08:30.00 255.4 8.0 5.7 - - - -2.22 +/- 0.10 6.67 +/- 0.85 16.3 +/- 2.0 7.04 24.86 33.70 S
10110363335 10/11/03 17:35:35.00 238.3 -48.1 3.7 24.8 +/- 2.0 1.90 +/- 0.13 21.8 +/- 1.5 -2.184 +/- 0.097 3.43 +/- 0.44 39.3 +/- 5.1 60.81 57.27 123.74 S
10121121267 10/12/11 05:54:27.00 245.9 63.2 10.9 49.3 +/- 20. 4.2 +/- 1.1 5.2 +/- 1.3 -1.83 +/- 0.11 3.33 +/- 0.24 4.08 +/- 0.30 1.97 7.45 11.18 S
10121727187 10/12/17 07:33:07.00 316.4 -32.9 3.4 - - - -2.296 +/- 0.095 6.67 +/- 0.74 19.0 +/- 2.1 9.92 93.66 104.98 S
11011710117 11/01/17 02:48:37.00 193.9 -53.4 3.3 21.3 +/- 12. 2.79 +/- 0.42 5.70 +/- 0.86 -2.11 +/- 0.15 2.59 +/- 0.25 5.29 +/- 0.51 16.92 40.62 59.84 S
11011737613 11/01/17 10:26:53.00 307.8 64.9 19.4 26.5 +/- 4.3 1.43 +/- 0.19 14.0 +/- 1.9 -2.05 +/- 0.14 1.55 +/- 0.15 15.1 +/- 1.4 18.38 67.53 90.15 M
11011903415 11/01/19 00:56:55.00 291.2 55.4 10.6 26.9 +/- 2.8 1.53 +/- 0.20 5.01 +/- 0.65 -2.09 +/- 0.16 2.92 +/- 0.69 9.5 +/- 2.2 9.94 19.61 37.98 S
11031264584 11/03/12 17:56:24.00 154.8 -5.5 7.8 29.5 +/- 6.6 2.29 +/- 0.34 11.2 +/- 1.7 -1.97 +/- 0.12 4.77 +/- 0.98 23.4 +/- 4.8 9.73 17.64 28.15 S
11031969722 11/03/19 19:22:02.00 259.2 45.6 9.9 46.8 +/- 6.1 1.86 +/- 0.26 6.84 +/- 0.97 -1.64 +/- 0.10 5.22 +/- 0.96 19.2 +/- 3.5 12.43 25.86 39.78 S
11041830315 11/04/18 08:25:15.00 122.2 30.1 13.5 169.22 +/- 106. 5.9 +/- 1.7 13.0 +/- 3.8 -1.576 +/- 0.072 8.4 +/- 1.1 27.6 +/- 3.7 2.26 70.03 73.11 M
11051735845 11/05/17 09:57:25.00 282.6 -82.8 14.0 50.2 +/- 13. 8.3 +/- 1.4 3.42 +/- 0.60 -1.74 +/- 0.10 19.3 +/- 3.7 7.8 +/- 1.5 1.05 5.72 7.06 S
11052339922 11/05/23 11:05:22.00 45.3 46.5 7.5 134.7 +/- 35. 6.39 +/- 0.88 23.4 +/- 3.2 -1.583 +/- 0.057 10.3 +/- 1.0 37.9 +/- 3.6 14.09 16.41 32.16 S
11052552934 11/05/25 14:42:14.00 225.6 -17.1 7.5 52.1 +/- 29. 2.07 +/- 0.55 13.5 +/- 3.6 -2.10 +/- 0.12 2.25 +/- 0.36 18.3 +/- 3.0 11.10 1.89 15.46 M
11060681328 11/06/06 22:35:28.00 132.4 -32.4 3.9 - - - -2.13 +/- 0.21 2.90 +/- 0.92 29.6 +/- 9.4 13.93 34.04 97.67 M
11062570170 11/06/25 19:29:30.00 270.5 -16.9 12.9 - - - -2.22 +/- 0.17 1.69 +/- 0.25 2.76 +/- 0.42 1.98 11.61 15.04 S
11070345736 11/07/03 12:42:16.00 221.6 -26.0 13.7 136.2 +/- 42. 16.4 +/- 2.3 11.7 +/- 1.7 -1.631 +/- 0.057 25.3 +/- 2.3 18.1 +/- 1.6 1.79 3.92 6.06 S
11070947329 11/07/09 13:08:49.00 201.3 -74.7 1.0 - - - -2.25 +/- 0.12 6.7 +/- 1.0 16.4 +/- 2.6 26.07 49.09 78.69 S
11072646091 11/07/26 12:48:11.00 278.6 -58.1 13.3 - - - -2.20 +/- 0.18 2.59 +/- 0.61 7.4 +/- 1.7 2.95 4.09 7.53 S
11081315909 11/08/13 04:25:09.00 129.8 -44.8 4.3 26.9 +/- 2.7 2.68 +/- 0.28 3.28 +/- 0.34 -2.01 +/- 0.15 2.80 +/- 0.28 3.44 +/- 0.35 44.76 23.37 70.78 S
11081574970 11/08/15 20:49:30.00 254.9 18.2 2.1 71.3 +/- 1.9 14.56 +/- 0.33 172.3 +/- 3.9 -1.714 +/- 0.018 24.08 +/- 0.68 284.9 +/- 8.1 15.44 70.22 99.67 M
11090373623 11/09/03 20:27:03.00 99.1 -81.8 5.7 18.6 +/- 11. 6.06 +/- 0.56 12.3 +/- 1.1 -2.158 +/- 0.061 8.29 +/- 0.70 16.9 +/- 1.4 2.33 10.89 13.61 M
11100350666 11/10/03 14:04:26.00 196.7 -44.8 3.3 - - - -2.32 +/- 0.11 4.48 +/- 0.57 20.1 +/- 2.5 15.12 31.08 54.69 S
11100751308 11/10/07 14:15:08.00 118.0 0.5 23.7 89.6 +/- 60. 5.7 +/- 2.3 9.3 +/- 3.7 -1.53 +/- 0.12 3.47 +/- 0.30 5.67 +/- 0.49 1.76 4.02 6.07 S
11101954778 11/10/19 15:12:58.00 200.1 -59.1 7.8 - - - -2.08 +/- 0.21 1.27 +/- 0.18 6.75 +/- 0.95 64.69 99.01 173.83 S
11102935106 11/10/29 09:45:06.00 51.9 56.7 9.5 46.0 +/- 4.9 5.44 +/- 0.48 6.66 +/- 0.59 -1.946 +/- 0.083 8.9 +/- 1.1 10.9 +/- 1.4 2.96 7.44 10.99 S
11110384743 11/11/03 23:32:23.00 302.1 31.3 4.1 26.3 +/- 3.1 4.50 +/- 0.37 5.51 +/- 0.45 -2.11 +/- 0.10 8.1 +/- 1.2 9.9 +/- 1.4 25.59 41.54 68.46 M
11121031077 11/12/10 08:37:57.00 118.3 41.0 2.0 101.5 +/- 2.6 27.20 +/- 0.46 155.4 +/- 2.6 -1.6182 +/- 0.0098 47.10 +/- 0.78 269.0 +/- 4.4 2.28 12.16 59.87 M
11122567818 11/12/25 18:50:18.00 9.2 -52.8 6.4 218.5 +/- 50. 18.5 +/- 1.9 22.6 +/- 2.3 -1.496 +/- 0.033 25.9 +/- 1.4 31.7 +/- 1.8 68.08 14.31 82.59 M
12011548725 12/01/15 13:32:05.00 61.5 -20.2 7.7 175.7 +/- 31. 17.4 +/- 1.6 35.6 +/- 3.3 -1.497 +/- 0.032 26.8 +/- 1.4 54.7 +/- 2.9 39.98 8.87 49.06 M
12012913119 12/01/29 03:38:39.00 51.3 -10.6 2.5 202.6 +/- 9.8 73.3 +/- 2.1 89.6 +/- 2.5 -1.415 +/- 0.011 111.1 +/- 1.9 135.9 +/- 2.4 2.79 7.69 10.95 S
12021669280 12/02/16 19:14:40.00 89.9 58.3 1.3 100.0 +/- 3.5 12.91 +/- 0.35 179.1 +/- 4.9 -1.509 +/- 0.017 25.18 +/- 0.74 349.3 +/- 10. 76.61 167.50 255.97 M
12032279702 12/03/22 22:08:22.00 194.3 11.6 9.9 - - - -1.86 +/- 0.12 17.1 +/- 3.8 6.9 +/- 1.5 5.39 1.93 9.42 M
12041265725 12/04/12 18:15:25.00 195.2 14.2 17.0 - - - -1.83 +/- 0.13 8.7 +/- 2.0 7.1 +/- 1.6 1.36 5.49 8.98 M
12042026776 12/04/20 07:26:16.00 106.2 -81.3 11.8 147.4 +/- 7.7 42.8 +/- 1.6 52.3 +/- 1.9 -1.387 +/- 0.017 79.8 +/- 2.3 97.7 +/- 2.9 0.75 7.24 8.11 M
12062078172 12/06/20 21:42:52.00 257.8 -26.0 22.6 - - - -2.19 +/- 0.28 2.00 +/- 0.77 9.8 +/- 3.7 23.35 38.97 64.65 S
12090414877 12/09/04 04:07:57.00 198.7 -6.6 12.5 101.7 +/- 42. 7.9 +/- 1.5 9.7 +/- 1.9 -1.791 +/- 0.088 11.5 +/- 1.4 14.1 +/- 1.8 6.10 7.18 15.63 S
12092806448 12/09/28 01:47:28.00 19.9 17.7 13.5 48.2 +/- 6.1 5.47 +/- 0.53 4.47 +/- 0.44 -1.842 +/- 0.077 10.7 +/- 1.3 8.7 +/- 1.1 1.29 9.98 11.76 M
12102005733 12/10/20 01:35:33.00 159.1 -10.9 6.8 80.8 +/- 28. 2.54 +/- 0.54 12.4 +/- 2.6 -1.81 +/- 0.15 4.8 +/- 1.0 23.6 +/- 5.2 24.87 6.28 32.05 M
12112083610 12/11/20 23:13:30.00 216.4 44.5 6.1 108.9 +/- 13. 6.17 +/- 0.46 35.2 +/- 2.6 -1.595 +/- 0.041 10.72 +/- 0.74 61.2 +/- 4.2 20.12 29.69 58.55 S
12120241665 12/12/02 11:34:25.00 112.5 -35.5 21.0 44.3 +/- 7.4 4.90 +/- 0.44 18.0 +/- 1.6 -2.014 +/- 0.064 7.10 +/- 0.69 26.1 +/- 2.5 6.71 21.88 33.37 M
13010754739 13/01/07 15:12:19.00 126.8 -32.3 2.0 44.2 +/- 3.2 8.98 +/- 0.38 47.6 +/- 2.0 -2.034 +/- 0.033 13.03 +/- 0.61 69.1 +/- 3.2 12.47 20.69 43.06 S
13020154189 13/02/01 15:03:09.00 23.5 -2.4 11.5 20.6 +/- 4.2 2.68 +/- 0.30 6.57 +/- 0.75 -2.23 +/- 0.13 4.47 +/- 0.83 10.9 +/- 2.0 10.07 15.33 26.27 M
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