Table 3 Energy spectrum resulted from different time windows selected for the background region in time interval C (8 − 30 s)
From: Probable evidence for a transient mega-electron volt emission line in the GRB 221023A
Background selection regions | Egauss | σgauss | ΔAIC |
|---|---|---|---|
(s) | (keV) | (keV) | |
− 98 to −20, 90–180 | \(2146.0{6}_{-53.45}^{+67.56}\) | \(189.8{9}_{-9.18}^{+128.11}\) | 48.48 |
− 150 to −60, 150–200 | \(2175.9{7}_{-79.49}^{+18.86}\) | \(210.8{5}_{-47.54}^{+80.14}\) | 57.71 |
− 290 to −10, 85–300 | \(2158.4{5}_{-61.89}^{+49.76}\) | \(202.8{5}_{-36.32}^{+99.60}\) | 51.58 |
