In the early universe, a steady radio signal above the hydrogen atoms contains important information about the mass and nature of the first stars. It has been searched by researchers, including the University of Cambridge, using a new model that first investigates the effects of the initial star light, which is manufactured by the first generation of stars, and the effects of the first supernova on the 21 cm line from hydrogen. This detection gives us a new approach to knowing the cosmic don, a time when the universe through the formation of stars and galaxies was turned from darkness to light.
The stars are widely revealed before the early universe’s radio signal, says researchers of SKA
According to a Nature astronomy report, Professor Anastasia Fellakov, who belongs to the Cambridge Institute of astronomy, stated that the 21 cm signal, which started only 100 million years after the Big Bang, is sensitive to the first stars. These populations are quite different from the stars today, and their impact on hydrogen gas can be tracked through radio observations. The work was done under the Reach Project and contributes to the coming square kilometer array (SKA).
Instead of the visual observation performed by the James WebSpace Telescope, the arrival and SKA appliances collect data about the cosmic radio waves. In addition, he also considered the effects of ultra-violet light and X-ray-which on the 21 cm signal developed by the X-ray binary system. He discovered that the effects of these factors on the initial cosmic rays were understood less in preliminary studies, especially when the falling stars interact with survivors in the binary system.
Although still in its calm stage, Reich is already offering insights in the first billion years of the universe. Fulkov and his team believe that this technique can eventually be fixed not only when the stars were forming, but also how big they were. “The results of this project will explain the future of radio astronomy, including the involvement of site from places like Caru (South Africa),” Dr. Eli de Lira Sudo, the reached principal investigator.
These results are an important step towards understanding how the first objects in the universe were developed from the dark to the galaxy.
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