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The brightest object ever detected in the universe was discovered by astronomers using the European Southern Observatory’s Very Large Telescope in Chile.
Detected 12 billion light-years away in the early Universe, this object is a quasar 500 trillion times brighter than the Sun. Christopher Oncken, an astronomer at ANU and co-author of the study published today in Nature Astronomy, said: I’m surprised it wasn’t known until now.” Until now, he has been staring at our faces. ”
Quasar description
Quasars are objects from the early days of the universe that are driven by supermassive black holes. These extremely bright light sources streaking across the sky are the most powerful objects in the universe. The black hole in this quasar is growing at a mass equivalent to one sun per day, making it the fastest growing black hole ever.
Recent research has revealed that quasars are the result of galactic collisions.
Black Hole
The quasar, named J0529-4351, is so far from Earth that it took more than 12 billion years for its light to reach us. “We have discovered the fastest growing black hole ever known,” said lead author Christian Wolff, an astronomer at the Australian National University (ANU). “It has a massive mass and eats just over one sun a day.” —This makes it the brightest object in the known universe. ”
accretion disk
The incredible light from this quasar comes from what astronomers call an accretion disk, a hot, thin disk of matter that is slowly spiraling toward the black hole. “All this light comes from a hot accretion disk seven light years across, which must be the largest accretion disk in the universe,” said ANU PhD student and co-author Samuel Rai.
In 2019, NASA and the European Space Agency reported that the Hubble Space Telescope had discovered a quasar as bright as 600 trillion suns. But the quasar’s brightness was amplified by “lensing” galaxies, reducing its actual brightness to about 11 trillion suns.
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