← Back to High Energy Astrophysical Phenomena astro-ph.HE
Did JWST solve a 20-year mystery about a gamma-ray burst's true home?
Yuhan Mao, Hanrui He, Jia Ren, Yun Wang, Hao Zhou, Qiuli Wang, Yiming Zhu, Zhiping Jin, Daming Wei
June 1, 2026
Astronomers used JWST to identify a new host galaxy for GRB 061201, a short burst observed in 2006 without a confirmed host. The new candidate sits at redshift z~1.2, roughly six times more distant than the previously claimed z=0.111 host. Three independent tests—energy-luminosity relations, absence of a supernova-like signal, and afterglow modeling—favor the distant galaxy. This higher redshift drastically reduces the implied neutron star merger rate, bringing it into agreement with gravitational wave observations.
Read the original paper →