Fast Radio Bursts (FRBs) are explosions of radio waves lasting milliseconds in space. Individual radio blasts are broadcast only once and will not be repeated. But everyone knows that repetitive fast radio explosions send short and energetic radio waves many times over.
Astronomers have been able to track some radio explosions into their galaxies, but have yet to find the exact cause of the pulses. Learning more about the origin of these bright and intense radio broadcasts will help scientists to understand what causes them. CNN.
On May 20, 2019, astronomers discovered an object called FRB 190520 when they emitted a radio explosion. Researchers used a Chinese 500-meter spherical radio telescope, or FAST, to detect the explosion in telescope data in November. 2019. When they made tracking observations, astronomers noticed something unusual, emitting intermittent and repeated explosions from object radio waves.
In 2020, the team used the Carl G. Jansky Very Large Array or VLA telescopes of the National Science Foundation before discovering the source of the explosion using the Hawaii Subaru Telescope. Subaru’s observations in visible light show that the explosion occurred from the perimeter of a distant dwarf galaxy.
A study detailing the findings was published Wednesday in the journal Nature.
The latest findings raise many questions, as astronomers now wonder if there will be two types of rapid radio explosions. “Are repetitions different from non-repetitions? What happens to regular radio broadcasts, is it normal?”Kshitij Agarwal, co-author of the study, who was a doctoral student at the University of West Virginia, said in a statement.
There may be different mechanisms that cause or produce radio explosions that behave differently at different stages of evolution.
Scientists have previously speculated that high-speed radio explosions are caused by dense debris left by neutron stars with incredibly strong magnetic fields known as supernovae or magnets.
FRB 190520 is considered a viable “newborn” substance because it is located in a dense atmosphere, the law said. This environment can be caused by the supernova emitted matter that led to the creation of a neutron star. As this material expands over time, explosions from FRB 190520 may decrease with age.
Next, Li wants to find faster radio explosions. “A concise picture of the origin and evolution of FRBs is likely to emerge in a few years.”Li said.
The law is excited about the implications of a new type of radio source.
“For decades, astronomers thought that we could see practically two types of radio sources in other galaxies: the supermassive black holes of accretion and the formation of stars.”A space law. “Now we say” that one or two types of classification are no longer possible! There is a new kid in the city, and we need to take this into account when studying the population of radio sources in the universe.
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