Tag Archive for 'Collapsar'

A high-energy photonic jet (white and blue) blasts through a collapsar with a black hole at its center; the red space around the jet represents the cocoon where free neutrons may be captured causing the r-process, the nucleosynthesis that results in the formation of heavy elements. Image credit: Los Alamos National Laboratory.

Stars Dissolve into Neutrons to Form Heavy Elements, Study Suggests

Apr 24, 2025 by News Staff

High-energy photons produced deep in gamma-ray burst jets emerging from a collapsed star could dissolve the outer stellar layers into free neutrons, causing...

This illustration depicts a collapsing star that is producing two short gamma-ray jets. Image credit: Gemini Observatory / NOIRLab / NSF / AURA / J. da Silva / M. Zamani, NOIRLab.

Shortest Supernova-Produced Gamma-Ray Burst Discovered

Jul 28, 2021 by News Staff

Most known supernova-powered gamma-ray bursts are ‘long’ (lasting more than two seconds), but a gamma-ray burst event called GRB 200826A lasted just...