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Extremely Energetic Particles Coupled with the Violent Death of a Star for the First Time

28 Nov 2019, 10:09 UTC
Extremely Energetic Particles Coupled with the Violent Death of a Star for the First Time
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Researchers at the Niels Bohr Institute, University of Copenhagen and DTU Space in Lyngby have determined the emission of extremely energetic light particles during the death of a very heavy star for the first time.The discovery was made in collaboration with a large, international team of scientists. The light particles were measured with the telescope MAGIC, situated on the Canary Islands. The researchers at the Niels Bohr Institute subsequently measured the particles with the neighboring Nordic Optical Telescope. The scientific perspective - the source detection of the emission of particles - is to gain basic insights into the extreme physical processes in the death of the heaviest stars. The study is now published in the journal Nature.When a heavy star dies or collapses, it happens in the form of a supernova - a gigantic explosion. In about a ten thousandth of the supernovae it is even more violent. "Presumably a black hole or an extremely magnetic neutron star is formed", Johan Fynbo from the Cosmic DAWN Center at the Niels Bohr Institute explains. The matter is compressed to form an enormously compact object, spinning extremely fast. The magnetic field along the rotational axis can become intense and emit energetic particles ...

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