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astro-ph.HE2026
Short-duration GRB 250221A Afterglow Driven by Two-Component Jets from the merger of a compact star
Xiao Tian, Hou-Jun Lü, Xiao-Xuan Liu +4
GRB 250221A is a short gamma-ray burst (GRB) at redshift , with a duration of 1.8 s and no extended emission in either Swift/Burst Alert Telescope or Konus-Wind bands. A r…
astro-ph.HE2026
Identifying the poynting-flux-dominated outflow of Fermi GRBs with non-thermal spectrum and its energy-resolved light curve fitting
Xue-Zhao Chang, HouJun Lü, Zhao-Wei Du +2
The jet compositions of gamma-ray bursts (GRBs) are very important to understand the energy dissipation and radiation mechanisms, but it remains an open question in GRB physics. In…