Observe 500 rapid radio explosions in just one year!



A telescope in British Columbia has detected more than 500 new high-speed radio bursts (FRBs) during its first year of operation.

According to News i and quoting IyaThe origins of these rapid radio explosions, identified from 2018 to 2019, are unknown, but identifying these explosions is an important step in mapping the world.

To detect a rapid radio explosion with an advanced telescope, one must be lucky, because the time and direction of the radio dish are very important.

Radio explosions are mysterious beams of light that glow for a few milliseconds and then disappear. Although they glow for a short time, they have been seen in many parts of the world, including the Milky Way. Their origin and time are unknown.

The first rapid radio explosion was observed in 2007, and since then radio astronomers have barely observed 140 explosions, but a large telescope in British Columbia has multiplied that number. Called “CHIME”, the telescope detected 535 rapid radio explosions in its first year of operation.

Scientists involved in the telescope project, including several from the Massachusetts Institute of Technology (MIT), presented their findings at a meeting of the American Astronomical Society. This large number of fast radio waves can provide clues about the characteristics of this phenomenon. For example, a new group of these large explosions seems to have two types: repetitive and non-repetitive. Eighteen of these rapid radio explosions were repeated, but the rest occurred only once. The repeating groups were also different; they lasted longer and had more concentrated radio frequencies. This suggests that recurrent and non-recurring explosions originate from different cosmic mechanisms or astrophysical sources.

If astronomers have more time to study this phenomenon, we may soon discover its source.

The “CHIME” telescope has four large parabolic antennas. This telescope receives radio signals from half the sky daily. And it has a unique feature, which is that instead of turning a large dish, it stays fixed at one point and receives signals through a powerful processor. According to Kiyoshi Masui, an associate professor of physics at the Massachusetts Institute of Technology, this feature allows the CHIME telescope to observe multiple directions simultaneously, something that traditional telescopes cannot do, and therefore the number of rapid radio explosions it observes. more than.

This is a great achievement for this telescope and radio astronomy. When radio waves burn, the gases and plasmas in their path are deflected or scattered. The greater the scatter, the better astrophysicists and astronomers can make hypotheses about rapid radio waves and their origin. This was done for all 535 fast radio waves observed, and most of them appear to have come from very distant galaxies. Understanding what source has enough energy to propagate these waves can even change our understanding of the beginning of the world.

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