Unprecedented gamma-ray burst explained by long-lived jet

Previously, only supernovae were thought to cause long gamma-ray bursts (GRBs). However, a 2021 observation suggested compact-object mergers could also create GRBs. A new simulation confirms this by demonstrating that a massive accretion disk around a black hole formed from a merger can produce a long GRB-like jet lasting several seconds.

In this video: Full simulation of the large-scale evolution of a jet from a black hole-neutron star merger.

Credit: Ore Gottlieb/Northwestern University

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