China's "Sky Eye" first discovered a new rapid radio storm from the depths of the universe 8.5 billion years ago
China News Agency, Beijing, May 8 (Reporter Sun Zifa) A reporter learned from the National Astronomical Observatories of the Chinese Academy of Sciences on the 8th that the researcher Zhu Weiwei, Li Zhu and other partners used self-developed search technology, combined with deep learning artificial intelligence, to the commonly known as China "Sky Eye" 's 500-meter-diameter spherical radio telescope (FAST) mass survey data quickly searched, and for the first time recently discovered a new fast radio storm (FRB), which is about 8.5 billion light years away from the earth.
The rapid radio storm is a mysterious radio storm discovery phenomenon lasting only a few milliseconds. Since its discovery in 2007 and certification in 2013, it has become one of the hottest frontiers in the field of astronomy.
On the 8th, Zhu Weiwei conducted a scientific interpretation of the new fast radio storm discovered by FAST on the Internet platform, and found that more fast radio storms are helpful to understand the origin of fast radio storms. You can also use the phenomenon of fast radio storms to develop cosmology and foundations. Physical research. This is the first new fast radio storm discovered by FAST through blind search. Its dispersion is one of the highest among the known fast radio storms, which means that it is likely to be close to 2 from the red shift of the earth. The flash of the universe lasted only a few milliseconds, and it took 8.5 billion years of interstellar travel to reach Earth on November 23, 2018.
This new rapid radio burst exhibits a rare three-peak structure, which is generally more common in repeated rapid bursts, indicating that it may be a source of repeated bursts. "We are conducting follow-up observations to try to test this possibility. It is known that only a very small part of fast radio storms exhibit the characteristics of repeated outbursts, which we call repeated bursts. Whether the outbreaks are of the same origin ".
Zhu Weiwei believes that the high sensitivity of FAST makes it the most suitable for discovering those rapid radio bursts from the far depths of the universe, which can help astronomers to study the frequency and brightness distribution of rapid radio storms at the distance and time scale of cosmology. Their possible origin models are strictly limited. In addition, high sensitivity also allows FAST to track and observe some targets that may be rapid radio bursts or repeated storms, and may detect weak signals that other telescopes cannot find.
He revealed that FAST recently released major priority projects, including the drift scan project to discover new signals through blind search, the rapid radio storm search through the tracking of designated sources, and the multi-band observation project, I believe that the future will produce more and more interesting Astronomical achievements. (Finish)