“…GRBs are typically classified into long and short categories based on their duration of the prompt emission (Kouveliotou et al
1993). The prompt emission lightcurves are thought as the firsthand information of the GRBs, the morphological features of the lightcurves could imply the underlying physics of the radiation mechanisms (Beniamini & Granot
2016; Parsotan & Ito
2022) as well as some other aspects of GRBs (Dai et al
2017), such as central engine (Gao et al 2023), the outflow composition (Bromberg et al
2015), the structures of the relativistic jets (Salafia & Ghirlanda
2022), progenitor models (Camisasca et al
2023), etc. Zhao & Tang (
2022) fitted the pulses of nine short GRB lightcurves with the fast‐rising and exponential decaying (FRED) model (Norris et al
1996), they got a correlation between the rise time
and the full width of half maximum height
, that is,
.…”