Astronomers have discovered the progenitors of supermassive black holes

The study of the formation of supermassive black holes is an important topic in modern astrophysics. Leading theory

suggests that the seeds of supermassive blackholes formed after the death of the first massive stars in the early universe. They then continued to accumulate surrounding gas and finally turned into supermassive black holes. However, this theory has been challenged. The fact is that the mass of the most massive stars observed in the local universe is 100-200 solar masses. They would not be able to maintain a high level of accretion of matter.

In a new article published in the journal Monthly Notices of the Royal Astronomical Society, researchers have uncovered a possible existenceclass of supernovae. Their progenitors were stars with a mass of tens of thousands of Suns. They existed in small numbers in the early universe. Modeling of these objects showed that during the upcoming mission of the James Webb Space Telescope, scientists have a chance to observe such a supernova, which in this case will confirm the theory of the mechanism of the appearance of supermassive black holes.

Recall that a supermassive black hole is a blacka hole with a mass of 105–1011 solar masses. Supermassive black holes are found at the center of many galaxies, including the Milky Way. Paradoxically, the average density of a supermassive black hole (calculated by dividing the mass of a black hole by its Schwarzschild volume) can be very small (even less than the density of air in the lower atmosphere of the Earth). This is because the Schwarzschild radius is directly proportional to mass, and density is inversely proportional to volume.

Read more

Uranus has received the status of the strangest planet in the solar system. Why?

Physicists have created an analogue of a black hole and confirmed Hawking's theory. Where it leads?

Abortion and science: what will happen to the children who will give birth

Accretion is the process of increasing the mass of a celestial body by the gravitational attraction of matter onto it from the surrounding space.