The highest-energy gamma-rays from gamma-ray bursts (GRBs) have important implications
for their radiation mechanism. Here we report the detection of gamma-rays up to 13 …

Gamma-ray bursts were discovered by the Vela satellites in the late 1960s, but they were
announced for the first time exactly 50 years ago, in 1973. The history of our understanding …

The LHAASO Collaboration detected the gamma ray burst GRB 221009A at energies above
500 GeV with a tail extending up to 18 TeV, whose spectral analysis has presently been …

Although celestial sources emitting in the few tens of GeV up to a few TeV are being
investigated by imaging atmospheric Čerenkov telescope arrays such as HESS, MAGIC …

Gamma-ray bursts (GRBs) are explosive transient events occurring at cosmological
distances, releasing a large amount of energy as electromagnetic radiation over several …

GRB 221009A was the brightest gamma-ray burst ever detected on Earth. In its early
afterglow phase, photons with exceptional energies above 10 TeV were observed by …

The newly observed gamma ray burst GRB221009A exhibits the existence of 10 TeV-scale
photons, and the axion-photon conversion has been suggested as a candidate to explain …

We conducted a comprehensive investigation of the brightest-of-all-time GRB 221009A,
using new insights from very high-energy (VHE) observations from LHAASO and a complete …

The TeV observations of GRB 221009A provided us with a unique opportunity to analyse the
contemporaneous phase in which both prompt and afterglow emissions are seen …

As a potential consequence of Lorentz invariance violation (LIV), threshold anomalies open
a window to study LIV. Recently the Large High Altitude Air Shower (LHAASO) observatory …