Despite the many assumptions that our universe is a computer simulation, in fact the probability of this is extremely small. However, in the world nothing is impossible, so scientists can observe different forms of life in millions of Universes. In theory. In fact, astronomers have created eight million Universes on the computer. The fact that the simulation of the origin and further development of universes can tell a lot about our.
The greatest mystery of the Universe
If every time when you think about the Universe and about what it is, you think that you know nothing and don’t understand what’s really going on is normal. Our brain is incredibly difficult to comprehend concepts such as infinity, laniakea and the event horizon of a black hole. And when it comes to dark matter and not the feeling that dark matter — the biggest mystery of our Universe.
Laniakea — a supercluster of galaxies. Translated from Hawaiian the word means "immense heaven."
At least scientists today adhere to such point of view. The aim of the researchers in the creation of 8 million computer simulations of Universes was a desire to understand what role this mysterious substance has played in the life of our Universe since the Big Bang.
It is believed that shortly after the birth of the Universe, invisible and elusive substance, poluchivshie the name “dark matter” with the force of gravity is transformed into massive clouds, called dark matter halo. As soon as the halo grew in size, they attracted the rare hydrogen gas pervading the Universe to unite and form stars and galaxies that we see today. In this theory, dark matter acts as the Foundation of galaxies, determining the processes of formation, consolidation and development over time.
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To better understand the impact on the formation of the Universe provided the dark matter, scientists from the University of Arizona have created their own Universes using a supercomputer. 2000 processors worked without a break for three weeks, simulating more than 8 million unique Universes. Surprising is the fact that each universe is subordinate to a unique set of rules to help researchers understand the connection between dark matter and evolution of galaxies.
The greatest computer simulation
A study published in the journal Monthly Notices of the Royal Astronomical Society and is the first in its field. Previously, scientists had created a single simulation, focused on simulation of individual galaxies. A new program called Universe Machine. She continuously created millions of universes, each of which contained 12 million galaxies. Moreover, all these millions of universes have evolved from the Big Bang to the present day.
According to experts the most interesting is that now scientists can use all the available data about the evolution of galaxies, their number, the number of stars and the ways of star formation — and combine them into a comprehensive picture of the last 13 billion years of the Universe. Note that making an exact copy of our Universe or even galaxy would require enormous computing power. Therefore, scientists have focused on two key properties of galaxies: the total mass of stars and of the star formation rate.
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According to the study, the rate of star formation stars in the galaxy is closely connected with the mass of the dark matter halo. In those galaxies where the mass of the dark matter halo was similar to the dark matter halo of the milky Way, the rate of star formation was highest. This suggests that more massive galaxies the star formation is constrained by a large number of black holes.
Observations astronomers questioned the researchers ‘ hypothesis that dark matter suppresses the star formation in the early Universe. In fact, galaxies of smaller size are more likely to form stars with more speed.
In the future, scientists plan to expand the Universe Machine to work out more more options in which dark matter can affect the properties of galaxies, including the form of their development, the mass of black holes and the conversion rate of stars in a supernova.
Dizzying, isn’t it? Do you think scientists will be able to unravel the greatest mysteries of the Universe?