Italian researchers have used a new method to calculate the number of stellar-mass black holes that could exist in the universe. This will also help answer the question of how supermassive black holes are.

Scientists have long been preoccupied with the question of how many black holes there are in the universe. Now a group of astrophysicists has managed to find, if not the most accurate answer to this question, but a good approximation anyway.

the Astrophysical Journal Letters According to a publication in the scientific journal, a new method has been used to “calculate” more than 40 trillion (40,000,000,000,000,000,000) black holes in the observable universe. This also means that approximately 1 percent of the total ordinary matter in the universe is in these.


Experts also noted that the result could also help understand the long-standing question of how supermassive black holes spread.

The current result is also remarkable because the existence of black holes can only be talked about in theory for a long time, since they cannot be observed. Then scientists realized that these invisible celestial bodies are located in the center of material that emits high light – in the middle of the Milky Way, for example. Then a few years ago For the first time in the world to detect gravitational waves that provided clear evidence of their existenceand recently A picture was also taken of one of them.

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Stellar-mass black holes are the smallest of these celestial bodies, a few times or a few hundred times the mass of the Sun. Even larger, but smaller than the supermass, has not yet been observed.

The study also attempted to find answers to how this might happen. Stellar-mass black holes are the result of stars breaking apart, but the birth of giant masses remains a mystery. Experts believe that the results of the current study may be useful in answering the question in the future.

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