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Table 1.

Modelling parameters definition and results for the three selected GRBs.

Parameter GRB100621A GRB 131030A GRB161001A
Observation delay t (s)* 1500 1070 375
Injected electron-spectrum index p 2.84 2.54 2.5
Explosion shock energy Esh (erg) 3 × 1054 3 × 1054 2 × 1053

ISM case

Magnetic partition fraction ϵB 3 × 10−4 1.5 × 10−3 5 × 10−3
Electron partition fraction ϵe 0.025 0.04 0.045
Number density of ambient medium n0 (cm−3) 0.01 1 × 10−3 1 × 10−3

Wind case

Magnetic partition fraction ϵB 0.01 0.02 0.035
Electron partition fraction ϵe 0.016 0.045 0.05
A (cm−1) 3 × 1033 1 × 1033 3 × 1032

Notes. These definitions follow the convention of Sari et al. (1998), Sari & Esin (2001), Huang et al. (2022). In all cases, the injection fraction ηinj is 100.0%. Parameters followed by a * are set fixed during the analytical fitting.

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