Table 2 The results of evaluating the significance

From: Probable evidence for a transient mega-electron volt emission line in the GRB 221023A

Timeinterval(s)

8.00–30.00 [C]

8.00–21.00 [C. 1]

11.00 –24.00 [C. 2]

14.00–27.00 [C. 3]

17.00–30.00 [C. 4]

ΔAIC

51.87

25.76

36.47

36.55

27.60

\({{\rm{ln }}}({{\rm{BF}}})\)

9.99

3.87

7.34

4.15

2.06

Δχ2

40.14

34.49

27.09

30.46

18.53

\({p\mbox{-}{{\rm{value}}}}_{{{\rm{sim}}}}\)

<1.00 × 10−7

1.00 × 10−7

6.30 × 10−6

1.00 × 10−6

7.69 × 10−4

(>5.32σ)

(5.32σ)

(4.51σ)

(4.89σ)

(3.36σ)

\({p\mbox{-}{{\rm{value}}}}_{{{\rm{sim}}}\mbox{-}{{\rm{trial}}}}\)

<2.56 × 10−5

2.56 × 10−5

1.61 × 10−3

2.56 × 10−4

1.79 × 10−1

(>4.20σ)

(4.20σ)

(3.15σ)

(3.65σ)

(1.34σ)

  1. ΔAIC is the AIC value of the Band model minus the AIC value of the Band+Gaussian model. BF is the Bayes factor. Δχ2 is the statistical difference in the goodness-of-fit between the models Band and Band+Gaussian. The \({p\mbox{-}{{\rm{value}}}}_{{{\rm{sim}}}}\) is the chance probability value obtained from 1.00 × 107 simulations. The p-valuesim-trial is the corrected values obtained by accounting for the number of independent search trials based on p-valuesim. The values in parentheses correspond to the Gaussian-equivalent significance.
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