TNPSC Thervupettagam

Tidal disruption event

January 11 , 2023 687 days 670 0
  • Telescopes operated by NASA recently observed a massive black hole devouring a star.
  • The incident was the fifth-closest example of a black hole destroying a star.
  • It occurred 250 million light-years from the earth, in the centre of another galaxy.
  • The astronomical phenomenon of the destruction of a star by a black hole is formally called a tidal disruption event (TDE).
  • A tidal force is the difference in the strength of gravity between two points.
  • If the tidal force exerted on a body is greater than the intermolecular force that keeps it together, the body will get disrupted.
  • The event is formally called AT2021ehb.
  • It took place in a galaxy with a central black hole about 10 million times the mass of our sun.

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