In gamma-ray astronomy, gamma-ray bursts are extremely energetic events occurring in distant galaxies that represent the brightest and most powerful class of explosion in the Universe. These extreme e
Artist's illustration showing the life of a massive star: Nuclear fusion converts lighter elements into heavier ones; when fusion no longer generates enough pressure to counteract gravity, the star collapses into a black hole. During this collapse, energy may be released as a momentary burst of gamma-rays aligned to the axis of rotation.
Positions on the sky of all gamma-ray bursts detected during the BATSE mission. The distribution is isotropic, with no concentration towards the plane of the Milky Way, which runs horizontally through the center of the image.
The Italian–Dutch satellite BeppoSAX, launched in April 1996, provided the first accurate positions of gamma-ray bursts, allowing follow-up observations and identification of the sources.
NASA's Swift Spacecraft launched in November 2004
A neutron star merger is the stellar collision of neutron stars. When two neutron stars fall into mutual orbit, they gradually spiral inward due to the loss of energy emitted as gravitational radiatio
Gamma-ray burst
…form a neutron star or a black hole. Short-duration (sGRB) events are a subclass of GRB signals that are now known to originate from the cataclysmic merger of binary neutron stars. The sources of most GRB are billions of light years away from Earth, implying that the explosions are both extremely energetic (a typical burst releases…
Artist's impression of neutron stars merging, producing gravitational waves and resulting in a kilonova