Gamma-ray burst prompt emission spectra at high energies

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Table A.3.

Synchrotron parameters for each analysed time bin of GRB 221023A, along with the bolometric flux and the highest-energy photon detected by Fermi/LAT.

Time bin	p_index	ν_c	ν_m	E_cutoff	ph_index	F_Bol (× 10⁻⁶)	E_max	Best-fit Model
(Time-T₀)[s]	p_index	[keV]	[MeV]	[GeV]	ph_index	[erg cm⁻² s⁻¹]	[GeV]
0.00 - 17.72	$4 . 12_{- 0.27}^{+ 0.27}$ $4.12_{-0.27}^{+0.27}$	$115_{- 5}^{+ 5}$ $115_{-5}^{+5}$	$1694_{- 164}^{+ 170}$ $1694_{-164}^{+170}$	> 0.2	-	$1 . 42_{- 0.38}^{+ 0.25}$ $1.42_{-0.38}^{+0.25}$	5.64	Model 1
17.72 - 21.37	$3 . 49_{- 0.27}^{+ 0.26}$ $3.49_{-0.27}^{+0.26}$	$266_{- 19}^{+ 25}$ $266_{-19}^{+25}$	$1261_{- 233}^{+ 222}$ $1261_{-233}^{+222}$	> 0.15	-	$3 . 76_{- 1.31}^{+ 1.28}$ $3.76_{-1.31}^{+1.28}$	2.10	Model 1
21.37 - 23.11	$3 . 20_{- 0.23}^{+ 0.24}$ $3.20_{-0.23}^{+0.24}$	$271_{- 33}^{+ 70}$ $271_{-33}^{+70}$	$1008_{- 457}^{+ 305}$ $1008_{-457}^{+305}$	> 0.25	-	$3 . 60_{- 1.21}^{+ 2.11}$ $3.60_{-1.21}^{+2.11}$	4.05	Model 1
23.11 - 24.41	$3 . 20_{- 0.15}^{+ 0.18}$ $3.20_{-0.15}^{+0.18}$	$517_{- 87}^{+ 355}$ $517_{-87}^{+355}$	$657_{- 157}^{+ 408}$ $657_{-157}^{+408}$	> 0.37	-	$4 . 99_{- 2.85}^{+ 3.02}$ $4.99_{-2.85}^{+3.02}$	0.96	Model 1
24.41 - 28.45	$3 . 92_{- 0.39}^{+ 0.58}$ $3.92_{-0.39}^{+0.58}$	$196_{- 16}^{+ 18}$ $196_{-16}^{+18}$	$1169_{- 219}^{+ 272}$ $1169_{-219}^{+272}$	> 0.13	-	$3 . 10_{- 4.67}^{+ 1.48}$ $3.10_{-4.67}^{+1.48}$	7.87	Model 1
28.45 - 31.35	$3 . 62_{- 1.08}^{+ 0.95}$ $3.62_{-1.08}^{+0.95}$	$86_{- 10}^{+ 16}$ $86_{-10}^{+16}$	-	$1 . 82_{- 0.31}^{+ 1.58}$ $1.82_{-0.31}^{+1.58}$ (MeV)	$1 . 93_{- 0.03}^{+ 0.04}$ $1.93_{-0.03}^{+0.04}$	$1 . 16_{- 0.10}^{+ 0.92}$ $1.16_{-0.10}^{+0.92}$	1.18	Model 2
31.35 - 34.26	$3 . 44_{- 0.98}^{+ 1.03}$ $3.44_{-0.98}^{+1.03}$	$38_{- 9}^{+ 11}$ $38_{-9}^{+11}$	$840_{- 160}^{+ 313}$ $840_{-160}^{+313}$	$1 . 90_{- 0.05}^{+ 0.04}$ $1.90_{-0.05}^{+0.04}$ (MeV)	$1 . 90_{- 0.05}^{+ 0.04}$ $1.90_{-0.05}^{+0.04}$	$6 . 89_{- 4.99}^{+ 1.50}$ $6.89_{-4.99}^{+1.50}$	6.67	Model 2
34.26 - 37.65	$2 . 22_{- 0.14}^{+ 0.16}$ $2.22_{-0.14}^{+0.16}$	$382_{- 77}^{+ 102}$ $382_{-77}^{+102}$	-	$6 . 41_{- 3.27}^{+ 2.58}$ $6.41_{-3.27}^{+2.58}$	-	$4 . 33_{- 1.22}^{+ 0.07}$ $4.33_{-1.22}^{+0.07}$	2.24	Model 1
37.65 - 41.38	$2 . 19_{- 0.11}^{+ 0.12}$ $2.19_{-0.11}^{+0.12}$	$14_{- 3}^{+ 4}$ $14_{-3}^{+4}$	$237_{- 73}^{+ 101}$ $237_{-73}^{+101}$	> 0.5	-	$3 . 91_{- 0.15}^{+ 0.18}$ $3.91_{-0.15}^{+0.18}$	9.63	Model 1
41.38 - 44.24	$2 . 09_{- 0.06}^{+ 0.10}$ $2.09_{-0.06}^{+0.10}$	-	$161_{- 30}^{+ 41}$ $161_{-30}^{+41}$	> 0.8	-	$2 . 34_{- 0.05}^{+ 0.47}$ $2.34_{-0.05}^{+0.47}$	2.19	Model 1

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