Deep monsters ... How did the giant black holes form?

Shadi Abdel-Hafiz

A team of researchers from the International School for Advanced Studies in Trieste, Italy, arrived at a theoretical model that can reveal the secret of the emergence of giant black holes directly within eight hundred million years after the Big Bang, which is confusing to current theories.

Three types

According to the new study, published on the 23rd of March in the "Astrophysical Journal", the speed of small black holes going to the center of primitive galaxies was greater than expected, according to previous theories.

Black holes are the strangest cosmic bodies, formed at the end of the ages of giant stars, where those stars collapse in themselves in the form of a massive stellar explosion called "a supernova", leaving in the center a black hole with a force of gravity so strong that the light beam itself cannot escape from it.

There are three types of black holes are stellar black holes, those we talked about a little earlier, and giant black holes, which are found in the centers of galaxies and have a mass of tens of thousands to billions of times as much as the sun, and microscopic or black holes are a virtual picture of black holes .

According to the new study, giant black holes formed for several reasons, including the fact that small black holes that form at the ends of the first galaxies are attracted to the center of the galaxy - because of their friction with the surrounding material - to merge with the black holes that are there to make larger black holes.

Among these reasons is the very dense material surrounding the center of the galaxy, which jostles to fall into the black hole in the center of the galaxy, where those black holes grow into giant and sufficient to be "giant black holes".

cosmogony
According to the new physical model proposed by the Italian researchers, a black hole with a mass of ten thousand to one hundred thousand suns will take from time about fifty to one hundred million years to form, which leaves time - after the Big Bang - to be the primitive galaxies and the emergence of the first black holes and the evolution of giant black holes .

But at that point, let us make it clear that the primitive galaxies are not galaxies now, but were very active because of the density of matter in the universe, which caused the emergence of giant stars at record rates and quickly exploded to form huge numbers of black holes.

Researchers from the International School of Advanced Studies believe that, as one of the experimental examination stages of this hypothesis, we can use the LIGO Observatory of gravitational waves in the United States of America to monitor the fusion of small black holes with the seeds of black holes in the centers of galaxies, which will later become giant holes.

But that, according to the study, is not enough either, and we need to wait for the arrival of more advanced third-generation gravitational observatories such as the Einstein Telescope or the European "Lisa" mission, which is supposed to be launched in 2034.