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"China's heavenly eye" opens the search for extraterrestrial civilization

via:CnBeta     time:2020/4/28 15:36:00     readed:376

The reporter learned from the National Astronomical Observatory of the Chinese Academy of sciences today that the 500m aperture spherical radio telescope (fast), known as the "eye of the Chinese sky", officially launched the search for extraterrestrial civilization, looking for signals of high intelligent life from the depths of the universe. Extraterrestrial civilization search is one of the five scientific goals of fast telescope.


Art renderings of pulsar discovered by "China sky eye" fast. (data map of National Astronomical Observatory of Chinese Academy of Sciences)

After the completion of "China sky eye", some people said that if the earth receives the signals from the aliens in the next decade or two, it must be thanks to fast, the world's largest single aperture and most sensitive radio telescope.

In September 2018, researchers from the National Astronomical Observatory of the Chinese Academy of Sciences, the University of California, Berkeley and Beijing Normal University conducted installation tests on the high-resolution extraterrestrial civilization search backend at the fast site. In July 2019, the researchers analyzed and processed the drift scanning data, realized the frequency resolution of 4 Hz, successfully removed most of the RF interference, and screened out multiple groups of narrow-band candidate signals.

Li Di, chief scientist of fast and researcher of the National Astronomical Observatory of the Chinese Academy of Sciences, organized the fast and breakthrough Listening Program Cooperation Group, and then published a quantitative outlook on fast's extraterrestrial civilization search and sky survey. Based on the experimental observation of super earth GJ 273b and the calculation of the isotropic equivalent power of extraterrestrial civilization, fast has the potential to detect the terrestrial civilization on thousands of extraterrestrial planets to be announced by the extraterrestrial planetary survey satellite, as well as the second kind of caldashov or more advanced technological civilization in the nearby Andromeda galaxy. To promote fast's search for extraterrestrial civilization, we can reach unprecedented depth and expand our understanding of our position in the universe.

The results were published in American Astrophysical Journal and Chinese astrophysical research journal. They describe the special back end of fast extraterrestrial civilization search, and look forward to the prospect of searching extraterrestrial civilization. Li Di said, "this is the first extraterrestrial civilization search research result of fast, which lays a solid foundation for us to start extraterrestrial civilization search next."

According to today's news from the National Astronomical Observatory of the Chinese Academy of Sciences, more and more extraterrestrial planet discoveries, coupled with revolutionary advances in instruments and observation capabilities, have led the search for the revival of extraterrestrial civilization. In the future, fast is bound to become the main force in the search and research of extraterrestrial civilization.

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