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The mass of one of the first known black holes is much higher than previous predictions

The mass of one of the first known black holes is much higher than previous predictions

to the New York Times report, A group of international researchers have discovered that one of the first known black holes, called Cygnus X-1, is much larger than previously thought. At first it was thought that the mass of this two-system black hole was only 15 solar masses, but now it is said that this figure is estimated at 21 solar masses.

This mass is not a large number compared to supermassive black holes with millions or even billions of solar masses, but the difference is large enough to call into question existing models. A black hole of this magnitude could not have formed in the Milky Way galaxy, according to previous estimates of stellar mass loss. So scientists will probably have to re-examine their calculations about the lost mass. In addition, it is no longer possible to say with certainty how Cygnus X-1 turned into a black hole.

Researchers have previously used the Laser Interfering Gravitational Wave Observatory (LIGO) to find that the mass of black holes is greater than what X-rays show us. However, Cygnus X-1 now serves as a benchmark, and mass beyond expectation will lead to changes in scientific modeling that, while not changing the foundations of astronomy, will help us better understand the universe.

Earlier in December, a black hole called LB-1 was discovered, which was 70 times the mass of the Sun. According to most models of stellar evolution, this black hole should not have existed in our home galaxy, creating much ambiguity about our previous knowledge of astrophysics and the functioning of the universe. Scientists have previously explained in an article why some large black holes formed so rapidly early in life, but there are still many unanswered questions that need to be answered.

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