‘Impossible’ neutron stars may explain strange flashes

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The oscillation frequencies of two short gamma-ray bursts are the best evidence yet for the formation of ‘impossible’ hypermassive neutron stars that can briefly defy gravity before collapsing to form a black hole.

AND neutron star It forms when a massive star runs out of fuel and explodes, leaving behind a super-dense remnant that can fill the mass of the sun into the void of a city. Generally, a neutron star can contain only slightly more than twice the mass of the sun before it undergoes a gravitational collapse. black holes. However, when two normal neutron stars in a binary system merge, their combined masses may exceed this limit – but this is only for a short time and the phase is difficult to detect.

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