“Radio waves” were found in space caused by this phenomenon, “a rapid explosion of radio waves,” but the last detected wave took 8 billion years to reach Earth!
Astronomers have discovered a phenomenon known as… “Fast bursts of radio waves” (Fast radio blast. FRB) It took 8 billion years to reach Earth. It was the most mysterious, distant and powerful explosion ever seen.
The definition of an FRB is a millisecond-long burst of intense radio waves of unknown origin. It was first discovered in 2007 and has been around ever since. Hundreds of fast radio bursts have also been detected from distant points across the universe.
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The explosion that intrigued astronomers, dubbed FRB 20220610A, lasted less than 1 millisecond, but during that time, it emitted as much energy as our Sun emits over the course of 30 years.
Many fast radio bursts emit extremely bright radio waves that last only a few milliseconds before disappearing. This makes monitoring such radio bursts difficult. But with a radio telescope it can help astronomers track these fast phenomena. Including the ASKAP radio telescope at Wajarri Yamachi in Western Australia. From Australia
ASKAP detected the explosion of FRB 20220610A in June 2022 and is trying to figure out how it happened. Where does its origin come from?
Dr. Stuart Ryder, an astronomer from Macquarie University in Australia, and one of the researchers who made this discovery, said: “Using ASKAP’s radio dish, we were able to accurately determine the source of the explosion.”
He added: “We then used the European Southern Observatory’s (ESO) Very Large Telescope in Chile to search for the source galaxy and found that it is older and more distant than any other FRB found so far. It is likely within a small group of galaxies.”
The team traced the explosion to what appeared to be a group of two or three galaxies in the process of merging to form new stars. This result is consistent with current theories that suggest that rapid bursts of radio waves could come from magnetic fields or energetic objects generated by stellar explosions.
Scientists believe that fast bursts of radio waves may be a unique method that can be used to weigh the universe by measuring the unknown matter between galaxies.
Ryan Shannon, a professor at Swinburne University of Technology in Australia, said another research team: “If we count the amount of ordinary matter in the universe, we will find that more than half of what should be present today is missing.”
He added: “We believe that the missing matter is hiding in intergalactic space. But it can be so hot and diffuse that it cannot be seen with normal techniques.
So far, the results of current methods used to estimate the mass of the universe have been inconsistent. “This ionized matter feels a fast burst of radio waves,” Shannon said. “Even in space that is almost completely empty they can also ‘see’ all the electrons. This allows us to measure the amount of matter that exists between galaxies.”
The method uses rapid bursts of radio waves to detect this missing substance. This was previously proven by Australian astronomer Jean-Pierre Magarty, who died in 2020.
“Jean-Pierre showed that the faster (farther away) the radio burst is, the more gas spreads between galaxies,” Ryder said. Which we currently call Maggart relationships but recently discovered rapid bursts of radio waves seem to destroy this relationship.
In the past, approximately 50 radio bursts have been successfully traced back to their origins.
“While we still don’t know what causes these massive bursts of energy, the report confirms that fast bursts of radio waves are a common event in the universe. We will be able to use it to detect intergalactic matter and understand the structure of the universe,” Shannon said.
The astronomer said they hope radio telescopes in the future are currently under construction in South Africa and Australia. It will allow the detection of thousands of fast bursts of radio waves over longer distances than ever before.
“You wouldn’t just do it 30 times, you could do it 30,000 more times, creating a new map of the structure of the universe. And using it to answer important questions about cosmology,” Shannon said.
Compiled from CNN
Image by ESO/M.Kornmesser.
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