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Quasar and Galactic Collisions
May 4 , 2023
443 days
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- Astronomers first discovered quasars, considered to be the brightest and most powerful objects in the universe, 60 years ago.
- But they didn’t understand their origin.
- Now, scientists have unlocked the mystery behind what ignites these celestial objects.
- Quasars are a type of active galactic nuclei.
- They are located in supermassive black holes, which sit in the centre of galaxies.
- The researchers discovered that the collision of galaxies is what likely triggers quasars.
- They are estimating that quasar-hosting galaxies are three times as likely to collide with other galaxies.
- Recent studies found that around 65% of the observed quasar-hosting galaxies showed signs of galaxy mergers or encounters in the past.
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