Scientists do not have the opportunity to observe the formation of the first stars in the universe. Astronomers are turning to sophisticated computer simulations to study this crucial period.
Recently, a group of researchers conducted a new round of simulation and came to a very unexpected conclusion. Cold accumulation simulated. To get massive stars, you have to collect a lot of material very quickly in a very small volume. And this should happen without increasing the temperature of the material. Therefore, some methods of heat dissipation are needed.
Earlier simulations found the appearance of dense pockets in early galaxies that cooled rapidly due to emitted radiation. The new study takes this a step further by looking at how cold, dense pockets formed in the early universe behave. Simulations have shown that large flows of cold, condensed matter can strike the accretion disk at the center of giant clumps of matter. When this happens, a shock wave occurs. This shock wave rapidly destabilizes the gas, causing large pockets of matter to collapse instantly.
These large pockets can be tens of thousands of times larger than the Sun, and in some cases even 100,000 times larger. Since nothing can prevent them from collapsing, they instantly form giant stars.
Source: Ferra
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