The "China Sky Eye" was taken under different lighting conditions on August 28 (taken during maintenance). Photo by Xinhua News Agency reporter Ou Dongqu
China Daily, September 10th: China’s 500-meter Aperture Spherical Radio Telescope (FAST) covers an area equivalent to 30 football fields. Known as the “Eye in the Sky of China”, FAST is like a huge and sensitive ear, listening to sounds from far away The faintest "whisper" of stardust provides insight into the secrets hidden deep in the universe.
Recently, FAST detected multiple repeated bursts of fast radio bursts for the first time, capturing the largest number of known pulses in the world. Scientists say that this "mysterious radio signal in the depths of the universe" is about 3 billion light-years away from the earth. Interference factors such as aircraft and satellites have been eliminated so far, and subsequent cross-verification is in progress.
According to a report by Australia's Science Alert science network on September 10, China's giant radio telescope has just detected repeated signals from space. The 500-meter Aperture Spherical Radio Telescope (FAST) received a mysterious space signal called a fast radio burst.
Fast Radio Burst (FRB) refers to a brief and violent burst of radio waves that suddenly appears in the distant universe. It lasts for a very short time, usually only a few milliseconds, but can release an amount of energy equivalent to that released by the sun in a whole day. energy of. Normally, fast radio bursts appear once and then disappear, making them mysterious and unpredictable.
As a new Internet celebrity in the astronomy community in recent years, the international scientific community has yet to have a reasonable explanation for the origin of fast radio bursts. It was not until 2007 that humans discovered the first fast radio burst. So far, less than 100 fast radio bursts have been discovered in the world.
Screenshot of Science Alert website report
The article states that while astronomers have made some exciting progress in tracking FRBs recently, we don’t know what exactly these signals are, or how they are generated.
In China's tracking observations of fast radio burst FRB121102 using the FAST L-band 19-beam receiver, FAST detected multiple repeated bursts. So far, through processing various single-pulse search programs on August 29, 30, 31 and September 1 (UT time), FAST has discovered dozens of concentrated bursts and captured a large number of them. of high signal-to-noise ratio bursts, capturing the largest number of bursts known in the world.
Researchers say the more we observe fast radio bursts, the more likely we are to know exactly what they are, so the results of this detection are very exciting.
"I think it's amazing that nature can produce something like this," said Ziggy Pleunis, a physicist at McGill University in Canada.
Screenshot of India Today website report
According to a report on the India Today website, Chinese astronomers have detected multiple repeated bursts of fast radio bursts for the first time. This is a mysterious signal believed to come from a place about 3 billion light years away from the earth.
Researchers from the National Astronomical Observatory of the Chinese Academy of Sciences said the scientists detected these signals using the 500-meter Aperture Spherical Radio Telescope (FAST) and carefully cross-verified them. Researchers say the detection of repeating bursts may help clarify the origins and physics of fast radio bursts.
Screenshot of Asia Times report
According to reports, FAST is a radio telescope that consists of a fixed 500-meter-diameter dish-shaped building erected in a natural depression. It is called the "Sky Eye" in China.
The Asia Times reported that the team responsible for the China Sky Eye project stated that the information on the multiple bursts captured by FAST has been released to astronomical colleagues around the world through astronomical telegrams. Given that FRB121102 is in an active outburst period, FAST will arrange more tracking observations. Chinese researchers also called on their colleagues around the world to follow up on observations in order to uncover the mystery of this mysterious radio phenomenon.
(Editor: Qi Lei Wang Hui)
Source: China Daily.com
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