Table 2.
Prompt emission properties of individual episodes of GRB 150309A.
| Prompt emission properties | Episode 1 | Episode 2 |
|---|---|---|
| T90 (s) | 37.43 | 11.27 |
| tmvts (s) | ∼0.7 | |
| HR | 1.14 | 0.20 |
| Ep (keV) |
 |
 |
| Fp (10−7 erg cm2 s−1) | 7.11 | 0.27 |
| Eγ, iso (erg) | 43.09 × 1052 | 1.68 × 1052 |
| Lγ, iso (erg s−1) | 8.72 × 1052 | – |
| Redshift z | 2.0 | |
| Spectral lag (s) | –0.56 |
– |
Notes. The episode-wise peak fluxes are measured in the 1–10 000 keV energy range in the source frame. The terms tmvts, HR, Ep, peak flux (Fp), Eγ, iso, and Lγ, iso denote the minimum variability timescales, hardness ratio, peak energy, peak flux, isotropic equivalent gamma-ray energy, and isotropic equivalent gamma-ray luminosity, respectively.
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