Andrew Levan finds a new origin of gamma-ray bursts

Andrew Levan and colleagues have detected a long-duration gamma-ray burst near the center of an old galaxy for the first time. This location is so exceptional as to suggest a third possibleway of creating these long gamma-ray bursts. In addition to the collapse of a massive star, and a merger of binary stars at the end of their lives, this paper suggests the collision of two independent neutron stars as the origin of the gamma-ray burst.

https://www.astronomie.nl/nieuws/voor-het-eerst-lange-gammaflits-gezien-in-centrum-oud-sterrenstelsel-3787

https://phys.org/news/2023-06-stellar-demolition-derby-births-powerful.html

(Een artistieke weergave van een langdurige uitbarsting van gammastraling in de buurt van het centrum van een oud sterrenstelsel. (c) International Gemini Observatory/NOIRLab/NSF/AURA/M. Garlick/M. Zamani)