A few seconds after the big explosion, the temperature decreased, which allowed the first elements to form hydrogen and helium. Hundreds of thousands of years later, atoms began to connect with electrons and formed the first molecules. One of these molecules was the heliy-hydrid ion (heh+), which later contributed to the emergence of molecular hydrogen, the most common molecule in the universe.
These molecules played an important role in the formation of the first stars. To start with the thermonuclear synthesis, atoms and molecules should impact heat and release. Helius-hydrid ions are especially effective at low temperatures that can accelerate star formation in the early universe.
In a new study, scientists have cooled ions to -267 ° C and pushed them with heavy hydrogen and examined how the reaction rate depends on the temperature. It turned out that the reactions did not slow down at low temperatures contradicting previous theories.
Source: Ferra
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