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LIGO spots the first collision between neutron star and black hole

  • Integrity Education, Delhi
  • 30, Jun 2021
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  • Laser Interferometer Gravitational-wave Observatory (LIGO) and the Virgo Observatory detect gravitational waves from the distant cosmos.
  • Until now, the LIGO-Virgo collaboration (LVC) of gravitational waves detectors has only been able to observe collisions between pairs of black holes or neutron stars.
  • First confirmed detection of a neutron star-black hole (NS-BH) collision was observed in Jan 2020. 
  • The discovery is named GW200105

About Neutron Star and Black Hole

  • When a star that is more than eight times as massive as the Sun runs out of fuel, it undergoes a spectacular explosion called a supernova.
  • What remains can be a neutron star or a black hole.
  • Neutron stars are typically between 1.5 and 2 times as massive as the Sun, but are so dense that all their mass is packed into an object the size of a city.
  • Black holes are even more extreme. There is no upper limit to how massive a black hole can be.