Extragalactic magnetar giant flare GRB 231115A: Insights from Fermi/GBM observations

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Volume 694 (February 2025)

A&A, 694 (2025) A323

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Table B.1.

Time-resolved analyses: Fixed intervals.

Time	E_p	α	Energy Flux (ℱ)	L_iso	E_iso
(ms)	(keV)		(×10⁻⁶ ergs s⁻¹ cm⁻²)	(×10⁴⁵ erg⋅ s⁻¹)	(×10⁴⁴ erg)
GRB 231115A
-16:-8	$550_{- 70}^{+ 80}$ $550^{+80}_{-70}$	$0 . 5_{- 0.5}^{+ 0.5}$ $0.5 ^{+0.5}_{-0.5}$	$22_{- 2}^{+ 2}$ $22 ^{+2}_{-2}$	$32_{- 2}^{+ 3}$ $32 ^{+3}_{-2}$	$2 . 7_{- 0.12}^{+ 0.2}$ $2.7^{+0.2}_{-0.12}$
-8:0	$740_{- 130}^{+ 160}$ $740^{+160}_{-130}$	$0 . 1_{- 0.4}^{+ 0.4}$ $0.1 ^{+0.4}_{-0.4}$	$25_{- 2}^{+ 2}$ $25 ^{+2}_{-2}$	$37_{- 1}^{+ 2}$ $37 ^{+2}_{-1}$	$3 . 14_{- 0.11}^{+ 0.14}$ $3.14 ^{+0.14}_{-0.11}$
0:8	$600_{- 80}^{+ 90}$ $600^{+90}_{-80}$	$0 . 9_{- 0.6}^{+ 0.5}$ $0.9^{+0.5}_{-0.6}$	$17_{- 2 .}^{+ 2}$ $17 ^{+2}_{-2.}$	$25 . 2_{- 1.1}^{+ 2.3}$ $25.2 ^{+2.3}_{-1.1}$	$2 . 19_{- 0.012}^{+ 0.20}$ $2.19 ^{+0.20}_{-0.012}$
8:16	$410_{- 80}^{+ 90}$ $410^{+90}_{-80}$	$0 . 8_{- 1.1}^{+ 1.5}$ $0.8^{+1.5}_{-1.1}$	$6_{- 2}^{+ 1}$ $6 ^{+1}_{-2}$	$9 . 3_{- 0.7}^{+ 1.4}$ $9.3 ^{+1.4}_{-0.7}$	$0 . 85_{- 0.07}^{+ 0.11}$ $0.85 ^{+0.11}_{-0.07}$
16:24	$500_{- 100}^{+ 100}$ $500^{+100}_{-100}$	$0 . 7_{- 1.0}^{+ 1.2}$ $0.7 ^{+1.2}_{-1.0}$	$7_{- 2}^{+ 2}$ $7 ^{+2}_{-2}$	$10_{- 1}^{+ 2}$ $10 ^{+2}_{-1}$	$0 . 94_{- 0.08}^{+ 0.12}$ $0.94 ^{+0.12}_{-0.08}$
24:44	$500_{- 200}^{+ 300}$ $500^{+300}_{-200}$	$- 0 . 2_{- 0.7}^{+ 0.9}$ $-0.2 ^{+0.9}_{-0.7}$	$3 . 5_{- 0.8}^{+ 1.0}$ $3.5 ^{+1.0}_{-0.8}$	$5 . 1_{- 0.7}^{+ 1.1}$ $5.1 ^{+1.1}_{-0.7}$	$1 . 21_{- 0.14}^{+ 0.20}$ $1.21 ^{+0.20}_{-0.14}$

GRB 200415A
-8:0	$1190_{- 110}^{+ 120}$ $1190^{+120}_{-110}$	$- 0 . 3_{- 0.1}^{+ 0.1}$ $-0.3 ^{+0.1}_{-0.1}$	$276_{- 8}^{+ 8}$ $276 ^{+8}_{-8}$	$404_{- 6}^{+ 9}$ $404 ^{+9}_{-6}$	$33 . 0_{- 0.5}^{+ 0.8}$ $33.0 ^{+0.8}_{-0.5}$
0:8	$1400_{- 130}^{+ 140}$ $1400^{+140}_{-130}$	$0 . 1_{- 0.1}^{+ 0.1}$ $0.1 ^{+0.1}_{-0.1}$	$214_{- 7}^{+ 7}$ $214 ^{+7}_{-7}$	$314_{- 4}^{+ 8}$ $314 ^{+8}_{-4}$	$25 . 6_{- 0.4}^{+ 0.7}$ $25.6 ^{+0.7}_{-0.4}$
8:16	$1150_{- 90}^{+ 90}$ $1150^{+90}_{-90}$	$0 . 6_{- 0.1}^{+ 0.1}$ $0.6 ^{+0.1}_{-0.1}$	$146_{- 8}^{+ 7}$ $146 ^{+7}_{-8}$	$215_{- 5}^{+ 7}$ $215 ^{+7}_{-5}$	$17 . 8_{- 0.4}^{+ 0.6}$ $17.8 ^{+0.6}_{-0.4}$
16:24	$860_{- 60}^{+ 60}$ $860^{+60}_{-60}$	$1 . 1_{- 0.2}^{+ 0.2}$ $1.1 ^{+0.2}_{-0.2}$	$90_{- 6}^{+ 5}$ $90 ^{+5}_{-6}$	$132_{- 4}^{+ 5}$ $132 ^{+5}_{-4}$	$11 . 0_{- 0.3}^{+ 0.5}$ $11.0 ^{+0.5}_{-0.3}$
24:32	$1000_{- 140}^{+ 200}$ $1000^{+200}_{-140}$	$0 . 03_{- 0.20}^{+ 0.20}$ $0.03 ^{+0.20}_{-0.20}$	$61_{- 3}^{+ 3}$ $61 ^{+3}_{-3}$	$89_{- 3}^{+ 3}$ $89 ^{+3}_{-3}$	$7 . 3_{- 0.2}^{+ 0.2}$ $7.3 ^{+0.2}_{-0.2}$
32:40	$770_{- 70}^{+ 80}$ $770^{+80}_{-70}$	$0 . 7_{- 0.2}^{+ 0.2}$ $0.7 ^{+0.2}_{-0.2}$	$52_{- 4}^{+ 4}$ $52 ^{+4}_{-4}$	$76_{- 3}^{+ 4}$ $76 ^{+4}_{-3}$	$6 . 3_{- 0.2}^{+ 0.4}$ $6.3 ^{+0.4}_{-0.2}$
40:48	$800_{- 80}^{+ 80}$ $800^{+80}_{-80}$	$0 . 7_{- 0.2}^{+ 0.2}$ $0.7 ^{+0.2}_{-0.2}$	$54_{- 4}^{+ 4}$ $54 ^{+4}_{-4}$	$80_{- 3}^{+ 5}$ $80 ^{+5}_{-3}$	$6 . 7_{- 0.3}^{+ 0.3}$ $6.7 ^{+0.3}_{-0.3}$
48:56	$700_{- 50}^{+ 60}$ $700^{+60}_{-50}$	$1 . 2_{- 0.3}^{+ 0.2}$ $1.2 ^{+0.2}_{-0.3}$	$46_{- 4}^{+ 3}$ $46 ^{+3}_{-4}$	$67_{- 2}^{+ 4}$ $67 ^{+4}_{-2}$	$6 . 0_{- 0.2}^{+ 0.3}$ $6.0 ^{+0.3}_{-0.2}$
56:64	$860_{- 120}^{+ 130}$ $860^{+130}_{-120}$	$0 . 2_{- 0.3}^{+ 0.2}$ $0.2 ^{+0.2}_{-0.3}$	$43_{- 3}^{+ 3}$ $43 ^{+3}_{-3}$	$63_{- 2}^{+ 4}$ $63 ^{+4}_{-2}$	$5 . 2_{- 0.2}^{+ 0.3}$ $5.2 ^{+0.3}_{-0.2}$
64:72	$640_{- 70}^{+ 80}$ $640^{+80}_{-70}$	$0 . 6_{- 0.4}^{+ 0.3}$ $0.6 ^{+0.3}_{-0.4}$	$31_{- 3}^{+ 3}$ $31 ^{+3}_{-3}$	$45_{- 2}^{+ 3}$ $45 ^{+3}_{-2}$	$3 . 8_{- 0.1}^{+ 0.2}$ $3.8 ^{+0.2}_{-0.1}$
72:80	$640_{- 110}^{+ 120}$ $640^{+120}_{-110}$	$0 . 2_{- 0.5}^{+ 0.4}$ $0.2 ^{+0.4}_{-0.5}$	$18_{- 2}^{+ 2}$ $18 ^{+2}_{-2}$	$26 . 6_{- 1.4}^{+ 2.4}$ $26.6 ^{+2.4}_{-1.4}$	$2 . 3_{- 0.1}^{+ 0.2}$ $2.3 ^{+0.2}_{-0.1}$
80:88	$490_{- 80}^{+ 80}$ $490^{+80}_{-80}$	$0 . 3_{- 0.6}^{+ 0.6}$ $0.3 ^{+0.6}_{-0.6}$	$15_{- 2}^{+ 2}$ $15 ^{+2}_{-2}$	$21 . 9_{- 1.0}^{+ 1.6}$ $21.9 ^{+1.6}_{-1.0}$	$2 . 0_{- 0.1}^{+ 0.1}$ $2.0 ^{+0.1}_{-0.1}$
88:96	$380_{- 60}^{+ 60}$ $380^{+60}_{-60}$	$0 . 6_{- 0.8}^{+ 1.3}$ $0.6 ^{+1.3}_{-0.8}$	$10 . 2_{- 1.5}^{+ 1.3}$ $10.2 ^{+1.3}_{-1.5}$	$14 . 9_{- 0.9}^{+ 1.5}$ $14.9 ^{+1.5}_{-0.9}$	$1 . 28_{- 0.06}^{+ 0.11}$ $1.28 ^{+0.11}_{-0.06}$
96:104	$800_{- 200}^{+ 300}$ $800^{+300}_{-200}$	$- 0 . 12_{- 0.47}^{+ 0.43}$ $-0.12 ^{+0.43}_{-0.47}$	$15_{- 2}^{+ 2}$ $15 ^{+2}_{-2}$	$22_{- 2}^{+ 3}$ $22 ^{+3}_{-2}$	$2 . 0_{- 0.2}^{+ 0.2}$ $2.0 ^{+0.2}_{-0.2}$
104:112	$380_{- 50}^{+ 50}$ $380^{+50}_{-50}$	$1 . 4_{- 1.2}^{+ 1.5}$ $1.4 ^{+1.5}_{-1.2}$	$7 . 4_{- 9.1}^{+ 1.5}$ $7.4 ^{+1.5}_{-9.1}$	$10 . 9_{- 1.1}^{+ 1.8}$ $10.9 ^{+1.8}_{-1.1}$	$1 . 01_{- 0.10}^{+ 0.11}$ $1.01 ^{+0.11}_{-0.10}$
112:120	$320_{- 30}^{+ 30}$ $320^{+30}_{-30}$	$1 . 9_{- 1.3}^{+ 3.2}$ $1.9 ^{+3.2}_{-1.3}$	$8_{- 2}^{+ 2}$ $8 ^{+2}_{-2}$	$11 . 8_{- 1.1}^{+ 2.0}$ $11.8 ^{+2.0}_{-1.1}$	$1 . 08_{- 0.10}^{+ 0.14}$ $1.08 ^{+0.14}_{-0.10}$
120:128	$240_{- 20}^{+ 20}$ $240^{+20}_{-20}$	$2 . 2_{- 0.8}^{+ 1.2}$ $2.2 ^{+1.2}_{-0.8}$	$4 . 9_{- 1.1}^{+ 2.0}$ $4.9 ^{+2.0}_{-1.1}$	$7 . 1_{- 1.2}^{+ 1.5}$ $7.1 ^{+1.5}_{-1.2}$	$0 . 69_{- 0.08}^{+ 0.14}$ $0.69 ^{+0.14}_{-0.08}$
128:136	$370_{- 90}^{+ 90}$ $370^{+90}_{-90}$	$0 . 7_{- 1.2}^{+ 2.3}$ $0.7 ^{+2.3}_{-1.2}$	$4 . 1_{- 1.3}^{+ 1.0}$ $4.1 ^{+1.0}_{-1.3}$	$6 . 0_{- 0.7}^{+ 0.9}$ $6.0 ^{+0.9}_{-0.7}$	$0 . 57_{- 0.06}^{+ 0.08}$ $0.57 ^{+0.08}_{-0.06}$

GRB 180128A
-16:-6	$460_{- 80}^{+ 80}$ $460^{+80}_{-80}$	$0 . 2_{- 0.5}^{+ 0.6}$ $0.2 ^{+0.6}_{-0.5}$	$15 . 4_{- 1.5}^{+ 1.4}$ $15.4 ^{+1.4}_{-1.5}$	$22 . 5_{- 0.9}^{+ 1.5}$ $22.5 ^{+1.5}_{-0.9}$	$2 . 39_{- 0.10}^{+ 0.15}$ $2.39 ^{+0.15}_{-0.10}$
-6:4	$320_{- 50}^{+ 60}$ $320^{+60}_{-50}$	$0 . 6_{- 0.7}^{+ 1.3}$ $0.6 ^{+1.3}_{-0.7}$	$6 . 8_{- 1.2}^{+ 1.2}$ $6.8 ^{+1.2}_{-1.2}$	$10 . 0_{- 0.9}^{+ 1.2}$ $10.0 ^{+1.2}_{-0.9}$	$1 . 11_{- 0.07}^{+ 0.14}$ $1.11 ^{+0.14}_{-0.07}$
4:14	$210_{- 20}^{+ 20}$ $210^{+20}_{-20}$	$3 . 3_{- 1.0}^{+ 1.4}$ $3.3 ^{+1.4}_{-1.0}$	$2 . 5_{- 0.6}^{+ 0.7}$ $2.5 ^{+0.7}_{-0.6}$	$3 . 6_{- 0.5}^{+ 0.7}$ $3.6 ^{+0.7}_{-0.5}$	$0 . 42_{- 0.04}^{+ 0.06}$ $0.42 ^{+0.06}_{-0.04}$
14:24	$120_{- 14}^{+ 12}$ $120^{+12}_{-14}$	$4 . 3_{- 0.6}^{+ 0.8}$ $4.3 ^{+0.8}_{-0.6}$	$1 . 0_{- 0.3}^{+ 0.4}$ $1.0 ^{+0.4}_{-0.3}$	$1 . 5_{- 0.3}^{+ 0.5}$ $1.5 ^{+0.5}_{-0.3}$	$0 . 19_{- 0.03}^{+ 0.04}$ $0.19 ^{+0.04}_{-0.03}$
24:34	$150_{- 90}^{+ 90}$ $150^{+90}_{-90}$	$0 . 4_{- 0.8}^{+ 3.0}$ $0.4 ^{+3.0}_{-0.8}$	$0 . 6_{- 29.5}^{+ 11360.0}$ $0.6 ^{+11360.0}_{-29.5}$	$0 . 8_{- 94.3}^{+ 100.0}$ $0.8 ^{+100.0}_{-94.3}$	$1200_{- 850}^{+ 1200}$ $1200 ^{+1200}_{-850}$
34:44	$200_{- 100}^{+ 100}$ $200^{+100}_{-100}$	$0 . 1_{- 0.8}^{+ 2.7}$ $0.1 ^{+2.7}_{-0.8}$	$0 . 6_{- 0.3}^{+ 0.2}$ $0.6 ^{+0.2}_{-0.3}$	$0 . 8_{- 0.2}^{+ 0.3}$ $0.8 ^{+0.3}_{-0.2}$	$0 . 11_{- 0.02}^{+ 0.03}$ $0.11 ^{+0.03}_{-0.02}$
44:54	$1280_{- 9}^{+ 5}$ $1280^{+5}_{-9}$	$20_{- 1}^{+ 6}$ $20 ^{+6}_{-1}$	$0 . 5_{- 0.3}^{+ 0.8}$ $0.5 ^{+0.8}_{-0.3}$	$0 . 7_{- 0.6}^{+ 0.9}$ $0.7 ^{+0.9}_{-0.6}$	$0 . 14_{- 0.05}^{+ 0.07}$ $0.14 ^{+0.07}_{-0.05}$
54:64	$220_{- 150}^{+ 110}$ $220^{+110}_{-150}$	$0 . 9_{- 1.4}^{+ 10.3}$ $0.9 ^{+10.3}_{-1.4}$	$0 . 7_{- 0.8}^{+ 1.5}$ $0.7 ^{+1.5}_{-0.8}$	$1 . 0_{- 0.9}^{+ 1.7}$ $1.0 ^{+1.7}_{-0.9}$	$0 . 24_{- 0.10}^{+ 0.15}$ $0.24 ^{+0.15}_{-0.10}$

GRB 051103
-16:-4	$120_{- 100}^{+ 9900}$ $120^{+9900}_{-100}$	$- 1 . 1_{- 0.9}^{+ 6.1}$ $-1.1 ^{+6.1}_{-0.9}$	$2 . 1_{0.9}^{+ 3.3}$ $2.1 ^{+3.3}_{0.9}$	$3 . 0_{- 1.4}^{+ 4.8}$ $3.0 ^{+4.8}_{-1.4}$	$0 . 4_{- 0.2}^{+ 0.6}$ $0.4 ^{+0.6}_{-0.2}$
-4:8	$2100_{- 600}^{+ 1600}$ $2100^{+1600}_{-600}$	$- 0 . 2_{- 0.2}^{+ 0.2}$ $-0.2 ^{+0.2}_{-0.2}$	$110_{400}^{+ 900}$ $110 ^{+900}_{400}$	$1670_{- 500}^{+ 1400}$ $1670 ^{+1400}_{-500}$	$200_{- 600}^{+ 150}$ $200 ^{+150}_{-600}$
8:20	$6000_{- 3000}^{+ 4000}$ $6000^{+4000}_{-3000}$	$- 0 . 5_{- 0.1}^{+ 0.2}$ $-0.5 ^{+0.2}_{-0.1}$	$1600_{880}^{+ 110}$ $1600 ^{+110}_{880}$	$2300_{- 1300}^{+ 200}$ $2300 ^{+200}_{-1300}$	$280_{- 160}^{+ 20}$ $280 ^{+20}_{-160}$
20:32	$2300_{- 1200}^{+ 7700}$ $2300^{+7700}_{-1200}$	$0 . 04_{- 0.38}^{+ 0.62}$ $0.04 ^{+0.62}_{-0.38}$	$400_{200}^{+ 1300}$ $400 ^{+1300}_{200}$	$600_{- 400}^{+ 1800}$ $600 ^{+1800}_{-400}$	$90_{- 500}^{+ 230}$ $90 ^{+230}_{-500}$
32:44	$900_{- 400}^{+ 5700}$ $900^{+5700}_{-400}$	$1 . 2_{- 1.1}^{+ 3.7}$ $1.2 ^{+3.7}_{-1.1}$	$100_{40}^{+ 400}$ $100 ^{+400}_{40}$	$100_{- 600}^{+ 600}$ $100 ^{+600}_{-600}$	$17_{- 7}^{+ 70}$ $17 ^{+70}_{-7}$
44:56	$1000_{- 400}^{+ 1000}$ $1000^{+1000}_{-400}$	$0 . 5_{- 0.5}^{+ 1.1}$ $0.5 ^{+1.1}_{-0.5}$	$160_{50}^{+ 160}$ $160 ^{+160}_{50}$	$230_{- 70}^{+ 240}$ $230 ^{+240}_{-70}$	$30_{- 11}^{+ 30}$ $30 ^{+30}_{-11}$
56:68	$700_{- 200}^{+ 300}$ $700^{+300}_{-200}$	$0 . 5_{- 0.5}^{+ 0.8}$ $0.5 ^{+0.8}_{-0.5}$	$70_{14}^{+ 25}$ $70 ^{+25}_{14}$	$100_{- 20}^{+ 30}$ $100 ^{+30}_{-20}$	$12_{- 2}^{+ 5}$ $12 ^{+5}_{-2}$
68:80	$900_{- 300}^{+ 1200}$ $900^{+1200}_{-300}$	$- 0 . 3_{- 0.3}^{+ 0.4}$ $-0.3 ^{+0.4}_{-0.3}$	$60_{20}^{+ 60}$ $60 ^{+60}_{20}$	$90_{- 30}^{+ 80}$ $90 ^{+80}_{-30}$	$10_{- 3}^{+ 11}$ $10 ^{+11}_{-3}$
80:92	$700_{- 200}^{+ 700}$ $700^{+700}_{-200}$	$0 . 2_{- 0.5}^{+ 1.0}$ $0.2 ^{+1.0}_{-0.5}$	$43_{11}^{+ 31}$ $43 ^{+31}_{11}$	$64_{- 20}^{+ 50}$ $64 ^{+50}_{-20}$	$8_{- 2}^{+ 5}$ $8 ^{+5}_{-2}$
88:104	$500_{- 100}^{+ 200}$ $500^{+200}_{-100}$	$1 . 7_{- 1.2}^{+ 3.3}$ $1.7 ^{+3.3}_{-1.2}$	$24_{4}^{+ 6}$ $24 ^{+6}_{4}$	$36_{- 7}^{+ 8}$ $36 ^{+8}_{-7}$	$5 . 7_{- 1.0}^{+ 1.2}$ $5.7 ^{+1.2}_{-1.0}$
104:116	$350_{- 60}^{+ 100}$ $350^{+100}_{-60}$	$1 . 9_{- 1.3}^{+ 3.2}$ $1.9 ^{+3.2}_{-1.3}$	$14_{3}^{+ 3}$ $14 ^{+3}_{3}$	$20_{- 4}^{+ 5}$ $20 ^{+5}_{-4}$	$2 . 5_{- 0.5}^{+ 0.5}$ $2.5 ^{+0.5}_{-0.5}$
116:128	$300_{- 30}^{+ 90}$ $300^{+90}_{-30}$	$4 . 97_{- 3.93}^{+ 0.03}$ $4.97 ^{+0.03}_{-3.93}$	$20_{2}^{+ 2}$ $20 ^{+2}_{2}$	$14_{- 3}^{+ 3}$ $14 ^{+3}_{-3}$	$1 . 7_{- 0.4}^{+ 0.4}$ $1.7 ^{+0.4}_{-0.4}$

Notes. The fixed interval, time-resolved fluence is from fitting the spectrum with a COMPT over a combined (NaI and BGO detectors) spectral range 8 keV–40 MeV for Fermi/GBM data and a range 20 keV–1.2 MeV for the WIND/KONUS data. The L_iso and E_iso values were calculated over the standardized bolometric energy range of 1 keV to 10 MeV. The values for GRB 200415A and GRB 180128A are consistent with those found in Roberts et al. (2021) and Trigg et al. (2024), respectively.

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