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astro-ph.HE2026
A Terrestrial Gamma-ray Flash with an Asymmetric Footprint Observed at the Pierre Auger Observatory
The Pierre Auger Collaboration, John Ortberg, David M. Smith +1
The Pierre Auger Observatory, a detector array that sits 1400m above sea level in Argentina, has the ability to map the entire footprint of Terrestrial Gamma-ray Flashes…
astro-ph.HE2025
Characterization of downward Terrestrial Gamma-ray Flashes detected at the Pierre Auger Observatory
Roberta Colalillo, Joseph Dwyer, John Ortberg +1
Downward Terrestrial Gamma-ray Flashes (TGFs) are sub-millisecond bursts of MeV gamma rays produced in thunderclouds. According to the Relativistic Runaway Electron Avalanche model…