Delivery time2024-01-18 05:00
International research team “Million times the mass of the sun… a mystery that does not fit existing theories.”
(Seoul = Yonhap News) Reporter Jooyoung Lee = The James Webb Space Telescope (JWST) discovered a huge black hole millions of times the mass of the sun devouring its host galaxy in the early universe about 13 billion years ago, only 400 million years after the Big Bang. ) was captured.
James Webb Space Telescope Orbital Configuration Imagination
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An international research team led by Professor Roberto Maiolino of the Cavendish Institute and Cavli Institute for Cosmology at the University of Cambridge, UK, reported on the James Webb Space Telescope (JWST) of the National Aeronautics and Space Administration (NASA) and the European Space Agency (ESA) in the scientific journal Nature on the 18th. It was revealed that a black hole was discovered 13 billion years ago using .
Professor Maiolino said that not only is this black hole the oldest observed, but its mass is millions of times that of the sun, so it does not fit the existing theory of black hole formation and growth, and that other theoretical systems that can explain the formation of such black holes should be considered. .
According to the Standard Model, which explains matter and the universe through the fundamental components of matter and the forces that govern their interactions, supermassive black holes form from the remains of dead stars, and the remains collapse into black holes about 100 times the mass of the Sun. This can be made.
This black hole grows by sucking in surrounding material, and according to existing theory, the newly discovered black hole is estimated to have taken 1 billion years to grow to its current size. The problem is that the black hole was discovered only 400 million years after the Big Bang.
Astronomers estimate that the supermassive black hole at the center of our galaxy has grown to its current size over billions of years.
The galaxy in which the new black hole was discovered is ‘GN-z11’, a small galaxy about 1/100th the size of the Milky Way. It is presumed that the black hole is hindering the development of the galaxy.
The research team said that the huge size of the discovered black hole suggests that black holes may be formed in a different way than existing theories, and that either the black hole was ‘born large’ in the first place or the speed at which it sucks in surrounding material is more than five times faster than previously thought. He said there was a possibility.
Professor Maiolino said that like other black holes, this black hole is growing by violently sucking in the material of its host galaxy. “The very early galaxies were very rich in gas, so the black hole would have been like a buffet with lots to eat.” said.
The research team said that it was thanks to JWST’s excellent observation ability that they were able to discover such a black hole in the early universe. They expect that in the future, through JWST observations, they will be able to find the ‘seeds’ of smaller black holes and unlock the secrets of the various ways in which black holes are formed.
Professor Maiolino said, “The quantum leap in JWST’s infrared sensitivity is like going from the Galileo telescope to a modern telescope overnight,” adding, “Given JWST’s outstanding sensitivity, we believe we will be able to discover even older black holes in the coming months and years.” “He said.
◆ 출처 : Nature, Roberto Maiolino et al., ‘A small and vigorous black hole in the early Universe’,
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2024/01/18 05:00 Sent
