University of Cambridge, UK
A black hole was observed to form in the early universe 400 million years after the Big Bang. Provided by Getty Image Bank
A supermassive black hole has been observed in the early universe, forming just 400 million years after the creation of the universe. It is growing at such a rapid rate that it cannot be explained by existing theories, raising the possibility that the theory of black hole formation may need to be revised.
A research team led by Roberto Maiolino, professor at the Kavli Institute for Cosmology at the University of Cambridge, in the United Kingdom, has discovered through the James Webb Space Telescope (JWST) a supermassive black hole that appears to have formed about 13 billion years ago . the international academic journal “Nature” reported on the 17th (local time). announced in
A black hole is a celestial body whose gravity is strong enough to swallow light. A star that has reached the end of its evolution collapses due to its own gravity. When collapse occurs, the density of the core increases significantly, and when the mass of the core becomes more than twice the mass of the sun, a black hole is born. Otherwise it becomes a neutron star.
This black hole discovered in the galaxy “GN-z11” is estimated to have formed 400 million years after the Big Bang. This occurs approximately 13 billion years ago, making it the oldest black hole observed to date.
However, the analysis is that the black hole is “unusual” because it has too large a mass for my age. The discovered black hole has a mass millions of times greater than that of the Sun. According to existing theories, it takes at least 1 billion years for a newly formed black hole to reach this size. However, when the black hole formed, the universe was only 400 million years old.
The research team believes that this black hole may have started out as a “good guy” or may have grown rapidly by consuming surrounding material at a rate five times faster than previously predicted. Professor Maiolino explained: “Early galaxies were extremely gas-rich environments, so they would have been like a buffet for black holes.”
Black holes grow in size by sucking matter from the galaxy to which they belong. The newly discovered black hole was also observed devouring material at the center of the host galaxy, GN-z11. It has been analyzed that it sucks in matter faster and more forcefully than a black hole that exists in the modern universe.
The research team believes that if the black hole devoured the galaxy’s material as quickly as it does now, the galaxy could slowly disappear. When a galaxy disappears, the black hole can disappear because there is no longer any material to feed on.
Professor Maiolino, who led the research, said: “I never thought we would be able to see more of the universe than the Hubble Space Telescope shows, but with JWST a new era has begun.” black holes in the early universe,” he added.
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