Brightest GRB flare observed in GRB 221009A: bridge the last gap between flare and prompt emission in GRB

Zheng-Hang Yu, Chen-Wei Wang, Shao-Lin Xiong +46

Flares are usually observed during the afterglow phase of Gamma-Ray Bursts (GRBs) in soft X-ray, optical and radio bands, but rarely in gamma-ray band. Despite the extraordinary br…