Gamma-ray burst prompt emission spectra at high energies

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Table 1.

Properties of GRBs in Sample-1.

GRB	z	$T_{90}^{GBM}$ $T^{\mathrm{GBM}}_{90}$ [s]	LLE	N_bin	$F_{peak}^{LAT}$ $F^{\mathrm{LAT}}_{\mathrm{peak}}$	$t_{peak}^{LAT}$ $t^{\mathrm{LAT}}_{\mathrm{peak}}$ [s]	γ
GRB	z	$T_{90}^{GBM}$ $T^{\mathrm{GBM}}_{90}$ [s]	LLE	N_bin	[erg cm⁻² s⁻¹]	$t_{peak}^{LAT}$ $t^{\mathrm{LAT}}_{\mathrm{peak}}$ [s]	γ
GRB080916C	4.35	62.9	✓	10	$1 . 48_{- 0.27}^{+ 0.27} \times 10^{- 6}$ $1.48^{+0.27}_{-0.27} \times 10^{-6}$	$6 . 61_{- 0.76}^{+ 0.76}$ $6.61^{+0.76}_{-0.76}$	$1 . 46_{- 0.07}^{+ 0.08}$ $1.46^{+0.08}_{-0.07}$
GRB090902B	1.82	21.9	✓	11	$4 . 57_{- 0.74}^{+ 0.63} \times 10^{- 6}$ $4.57^{+0.63}_{-0.74} \times 10^{-6}$	$9 . 33_{- 1.07}^{+ 1.07}$ $9.33^{+1.07}_{-1.07}$	$1 . 73_{- 0.09}^{+ 0.10}$ $1.73^{+0.10}_{-0.09}$
GRB090510	0.9	0.96	✓	2	$1 . 66_{- 0.50}^{+ 0.46} \times 10^{- 5}$ $1.66^{+0.46}_{-0.50} \times 10^{-5}$	$0 . 81_{- 0.11}^{+ 0.09}$ $0.81^{+0.09}_{-0.11}$	$1 . 79_{- 0.14}^{+ 0.16}$ $1.79^{+0.16}_{-0.14}$
GRB090926A	2.11	13.7	✓	10	$2 . 82_{- 0.65}^{+ 0.78} \times 10^{- 6}$ $2.82^{+0.78}_{-0.65} \times 10^{-6}$	$8 . 13_{- 0.94}^{+ 1.12}$ $8.13^{+1.12}_{-0.94}$	$1 . 56_{- 0.14}^{+ 0.23}$ $1.56^{+0.23}_{-0.14}$
GRB110731A	2.83	7.5	✓	2	$1 . 48_{- 0.92}^{+ 0.61} \times 10^{- 6}$ $1.48^{+0.61}_{-0.92} \times 10^{-6}$	$6 . 17_{- 2.27}^{+ 2.70}$ $6.17^{+2.70}_{-2.27}$	$2 . 32_{- 0.70}^{+ 1.09}$ $2.32^{+1.09}_{-0.70}$
GRB130427A	0.34	138.2	✓	3	$1 . 41_{- 0.20}^{+ 0.20} \times 10^{- 6}$ $1.41^{+0.20}_{-0.20} \times 10^{-6}$	$14 . 79_{- 1.36}^{+ 1.36}$ $14.79^{+1.36}_{-1.36}$	$1 . 37_{- 0.04}^{+ 0.05}$ $1.37^{+0.05}_{-0.04}$
GRB131108A	2.40	18.2	✓	5	$1 . 45_{- 0.40}^{+ 0.33} \times 10^{- 6}$ $1.45^{+0.33}_{-0.40} \times 10^{-6}$	$2 . 95_{- 0.68}^{+ 0.82}$ $2.95^{+0.82}_{-0.68}$	$1 . 56_{- 0.12}^{+ 0.17}$ $1.56^{+0.17}_{-0.12}$
GRB160509A	1.17	369.6	✓	3	$9 . 33_{- 3.01}^{+ 2.15} \times 10^{- 7}$ $9.33^{+2.15}_{-3.01} \times 10^{-7}$	$23 . 44_{- 3.78}^{+ 3.24}$ $23.44^{+3.24}_{-3.78}$	$3 . 37_{- 0.75}^{+ 0.84}$ $3.37^{+0.84}_{-0.75}$
GRB160625B	1.41	453.4	✓	6	$1 . 05_{- 0.46}^{+ 0.36} \times 10^{- 7}$ $1.05^{+0.36}_{-0.46} \times 10^{-7}$	$316 . 23_{- 50.97}^{+ 36.41}$ $316.23^{+36.41}_{-50.97}$	$2 . 62_{- 0.76}^{+ 1.20}$ $2.62^{+1.20}_{-0.76}$
GRB170214A	2.52	122.9	✓	3	$1 . 62_{- 0.49}^{+ 0.45} \times 10^{- 7}$ $1.62^{+0.45}_{-0.49} \times 10^{-7}$	$87 . 10_{- 14.04}^{+ 12.03}$ $87.10^{+12.03}_{-14.04}$	$1 . 83_{- 0.24}^{+ 0.29}$ $1.83^{+0.29}_{-0.24}$
GRB190114C	0.42	116.4	✓	3	$1 . 48_{- 0.75}^{+ 0.54} \times 10^{- 5}$ $1.48^{+0.54}_{-0.75} \times 10^{-5}$	$6 . 17_{- 1.28}^{+ 0.99}$ $6.17^{+0.99}_{-1.28}$	$1 . 85_{- 0.41}^{+ 0.48}$ $1.85^{+0.48}_{-0.41}$
GRB221023A	✗	39.2	✗	10	$2 . 14_{- 0.30}^{+ 0.30} \times 10^{- 6}$ $2.14^{+0.30}_{-0.30} \times 10^{-6}$	$36 . 31_{- 3.34}^{+ 2.51}$ $36.31^{+2.51}_{-3.34}$	$2 . 15_{- 0.14}^{+ 0.15}$ $2.15^{+0.15}_{-0.14}$

Notes. The table shows the redshift (z), duration ( $T_{90}^{GBM}$ $T_{90}^{\mathrm{GBM}}$ ), availability of LLE data, number of analyzed bins, and the results from timing analysis: Fermi/LAT peak flux ( $F_{peak}^{LAT}$ $F_{\mathrm{peak}}^{\mathrm{LAT}}$ ), peak time ( $t_{peak}^{LAT}$ $t_{\mathrm{peak}}^{\mathrm{LAT}}$ ), and temporal index of the LAT light curves.

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