Using the H.E.S.S. observatory, researchers at GRB 190829A observe unusual features that challenge models. Researchers from the H.E.S.S. Collaboration succeeded to derive the intrinsic spectrum…
Short gamma-ray bursts are extremely bright bursts of high-energy light that last for a couple of seconds. In many of these bursts, there is a…
Star-forming galaxies are responsible for creating gamma-rays that until now had not been associated with a known origin. Star-forming galaxies are responsible for creating gamma-rays…
Astronomers have succeeded for the first time in quantifying the proton and electron components of cosmic rays in a supernova remnant. At least 70% of…
Astronomers Uncover Briefest Supernova-Powered Gamma-Ray Burst Gemini North identifies collapsing star as the surprising cause of a “fizzled” gamma-ray burst. Astronomers have discovered the shortest-ever…
On August 26, 2020, NASA’s Fermi Gamma-ray Space Telescope detected a pulse of high-energy radiation that had been racing toward Earth for nearly half the…
Astrophysicists from the University of Bath in the UK find the magnetic field in gamma-ray bursts is scrambled after the ejected material crashes into, and…
Observation challenges established theory of gamma-ray bursts in the universe. Scientists have gained the best view yet of the brightest explosions in the universe: A…
Cosmic gas cloud blinks in sync with circling black hole. Scientists have detected a mysterious gamma-ray heartbeat coming from a cosmic gas cloud. The inconspicuous…
Rare event occurred 10 billion lightyears away, 3.8 billion years after the Big Bang SGRB181123B is the most distant short gamma ray burst with its…
To better understand and mitigate the health risks faced by astronauts from exposure to space radiation, we ideally need to be able to test the…
The physical process driving Gamma-Ray Bursts might be synchrotron radiation after all. A new analysis of Fermi/GBM archival data of gamma-ray bursts (GRB), the most…
First Detection of Inverse Compton Emission From Dying Gamma-Ray Burst A dying star emits intense flashes of light called a gamma-ray burst. Most days, the…
Second fastest spinning radio pulsar known is a gamma-ray pulsar, too. Multi-messenger observations look closely at the system and raise new questions. An international research…
Scientists from the RIKEN Cluster for Pioneering Research and collaborators have used simulations to show that the photons emitted by long gamma-ray bursts–one of the…
In the blink of an eye, a massive star more than 2 billion light-years away lost a million-year-long fight against gravity and collapsed, triggering a…
Researchers at Oregon State University have confirmed that last fall’s union of two neutron stars did in fact cause a short gamma-ray burst. The findings,…
A “core-collapse” supernova occurs when the iron core of a massive star collapses under the force of gravity and then rebounds, generating pressure waves and…