The mass of black holes can grow due to the expansion of the universe, astronomers say

The researchers proposed a new model according to which black holes can grow not only by absorbing the surrounding matter, but also due to the expansion energy of the Universe.

The existence of black holes has been known for a long time andscientists use a variety of ways to study them. However, they still remain a concentration of cosmic mysteries. For example, astronomers are often faced with the fact that the mass of black holes, measured by gravitational waves from their merger, is 2-3 times larger than the originally predicted values.

The traditional explanation isthe fact that they have become heavier due to the hugethe amount of absorbed surrounding matter. However, in a new study, an international team of astronomers has proposed a new theory that takes into account the influence of the cosmological relationship between the evolution of the universe and the mass of black holes.

In the model developed by scientists, in addition to gas,dust, planets, stars and other physical objects, black holes can grow, feeding (receiving energy) directly from the expansion of space. This concept does not contradict the theory of relativity.

As a famous example of a similar effectthey bring light, which loses its energy as the universe grows (although in this case the relationship is inverse). In their work, astronomers also point out that in order to simplify calculations, modern computer models do not take into account space expansion at all.

The team hopes to test the assumptions by analyzing data from more advanced gravitational-wave sensors such as the LISA telescope, which is slated to launch in 2034.

Recall that according to a recent studyastrophysicists from Queen Mary University of London, there may be incredibly large black holes in the Universe, the dimensions of which significantly exceed supermassive ones.

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