Short Gamma-Ray Burst Confirms Formation Scenario
An international team of astronomers reports the discovery of a third short gamma-ray burst, associated with a nearby elliptical galaxy. The low level of star formation in such galaxies and the detection of a second long-lasting flare indicate that this gamma-ray burst is most likely the final scream of a neutron star as it is being devoured by a black hole.
Gamma-ray bursts (GRBs), the most powerful type of explosion known in the Universe, come in two different flavours, long and short ones. Over the past few years, international efforts have shown that long gamma-ray bursts are linked with the ultimate explosion of massive stars (hypernovae; see e.g. ESO PR 16/03).
Henri Boffin | alfa
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