Early $\mathrm{TeV}$ photons of GRB 221009A were absorbed by the prompt MeV photons

Duan-yuan Gao, Yuan-Chuan Zou

Gamma-ray burst (GRB) 221009A produced the highest flux of gigaelectronvolt-teraelectronvolt ($\mathrm{GeV}-\mathrm{TeV}$) photons ever observed, allowing the construction of a detailed $\rm TeV…