According to recent news from the American Daily Science website, astronomers first discovered the primitive gas cloud formed within a few minutes after the Big Bang. The gas composition structure is in line with previous theoretical predictions, which is the theory of the origin of the universe element in modern cosmology Provided direct evidence. Researchers at the University of California, Santa Cruz, and St. Michael's College in Vermont submitted relevant papers to the US magazine Science and published them online recently. The theory of the origin of elements in the universe refers to the relationship between the expansion of the universe and the origin of elements, and the formation theory of elements is proposed. It is now believed that only the lightest elements, usually hydrogen and helium, were directly "created" by the Big Bang. Then in the millions of years following the Big Bang, these primitive gas clusters compressed to form the first generation of stars, which is where the heavier elements were born. Xavier Chaska, a co-author of the research paper and a professor of astrophysics at the University of California, said that people have long struggled to find those so-called "primitive materials" in the universe, but all failed. Now, with the help of the high-resolution spectrometer equipped with the Keck telescope at the peak of Mauna Kea, Hawaii, the United States, researchers have been able to deeply analyze the light from distant quasars and discovered these two primitive gas clouds. By dispersing the bright light of a quasar into different wavelength spectra, the researchers can see which wavelength is absorbed by the gas, and measure the composition of the gas corresponding to the absorption line of the spectrum. As a result, in the spectrum of the gas cloud, the researchers only saw hydrogen and its heavy isotope, deuterium. The researchers said that their analytical instruments have excellent sensitivity to carbon, oxygen, and silicon, but instead confirmed that these elements in the original gas cloud are completely absent; and this time the sensitivity is not for helium, if possible, it should be You will also see signs of helium. Before this result came out, the lowest metal abundance measurement obtained by scientists was one-thousandth of the solar metal abundance. This was once considered to be a "fall to the bottom" value. You must know that galaxy metals are so extensive Scattered in the universe, there should be nothing less than a thousandth of the solar metal abundance, so the result produced this time can be said to challenge the traditional thinking of astronomers. And this is the first time scientists have observed the original gas that has not been "contaminated" by heavy elements in the early universe. According to the researchers, the result is very exciting because it is consistent with the original prediction of the Big Bang Theory. The gas composition is perfectly matched and can be the first direct evidence. Industrial Electric Linear Actuator
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