Table 4
Time-resolved spectral parameters from model fits to GRB time intervals where significant deviations were detected.
| GRB | Interval* | Detectors | Model | Epeak | α | β | kT | Index | C-Stat/DOF |
|
|
|||||||||
| GRB 090323 | 60.4:66.6 | n9+nb+b1 | Comp | 535.70 |
–0.83 |
– | – | – | 410.14/353 |
| Band | 532.00  |
–0.83 |
–2.92 |
– | – | 409.25/352 | |||
| Band+BB | 426.00  |
–0.52 |
–3.00b | 4.99 |
– | 373.13/351 | |||
| Band+PL | 409.20 |
–0.28 |
–3.00b | – | –1.75 |
377.69/351 | |||
|
|
|||||||||
| GRB 090424 | 2.3:3.3 | n6+n7+n8 | Comp | 169.50 |
–0.87 |
– | – | – | 738.26/596 |
| +nb+b1 | Band | 153.00 |
–0.80 |
–2.81 |
– | – | 729.21/595 | ||
| Band+BB | 176.90 |
–0.48 |
–3.10 |
9.20 |
– | 662.65/593 | |||
| Band+PL | 153.40 |
–0.80 |
–2.82 |
– | 0.16 |
729.25/593 | |||
|
|
|||||||||
| GRB 090820a | 31.7:36.9 | n2+n5+b0 | Comp | 267.10 |
-0.58 |
– | – | – | 896.24/357 |
| Band | 221.60 |
–0.45 |
–2.63 |
– | – | 667.45/356 | |||
| Band+BB | 317.20 |
–0.71 |
–3.37 |
28.90 |
– | 600.59/354 | |||
| Band+PL | – | – | – | – | – | – | |||
|
|
|||||||||
| GRB 090902Bc | 9.7:10.6 | n0+n1+b0 | Comp | 1695.00 |
–1.14 |
– | – | – | 1178.7/356 |
| Band | 1657.00 |
–1.14 |
–3.00b | – | – | 1198.0/356 | |||
| Band+BB | 917.30 |
–0.51 |
–3.00b | 5.01 |
– | 489.48/354 | |||
| Band+PL | 782.00 |
0.20 |
–3.00b | – | –2.02 |
419.13/354 | |||
|
|
|||||||||
| GRB 090926A | 9.5:10.5 | n3+n6+n7 | Comp | 331.90 |
–0.95 |
– | – | – | 639.49/478 |
| +b1 | Band | 311.40 |
–0.93 |
–2.64 |
– | – | 628.82/477 | ||
| Band+BB | 392.00 |
–1.17 |
–2.35 |
48.99 |
– | 592.81/475 | |||
| Band+PL | 265.70 |
–0.46 |
–3.35 |
– | –1.73 |
583.77/475 | |||
Notes.
Although many intervals have significant excesses in GRB 090902B, only one is presented above for illustrative purposes (see also Abdo et al. 2009a; Pe’er et al. 2012; Ryde et al. 2011).
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