The universe was different at the start of its history. Recently, astronomers have stated that supermassive stars may have developed there, each of which has a mass of 100,000 times the mass of the Sun.
Scientists do not have the opportunity to observe the formation of the first stars in the universe. To study this important era, astronomers resort to sophisticated computer simulations.
Recently, a group of researchers conducted a new round of simulations and reached a very unexpected conclusion. The accumulation of cold was simulated. To obtain large stars, a large amount of material must be collected quickly in a very small volume. And this should happen without increasing the temperature of the material. Therefore, some method of heat dissipation is needed.
Previous simulations have found the appearance of dense pockets in the first galaxies, which cool quickly due to the emitted radiation. The new study goes one step further by observing how dense and cold pockets behave that formed in the primitive universe. The simulations have shown that large currents of cold, dense matter can strike the accretion disk in the center of giant clusters of matter. When this happens, a shock wave is formed. This shock wave quickly destabilizes the gas and causes the instant collapse of large pockets of matter.
These large pockets can be tens of thousands of times more massive than the Sun and, in some cases, even 100,000 times more massive. As nothing can prevent them from collapsing, they immediately form giant stars.
SOURCE: Noticias de ciencia