The Australian Square Kilometer Pathfinder (ASKAP) radio telescope, located at the Mercury Observatory of Murschison CSIRO in Western Australia. (Photo: CSIRO / Media about Dragonfly)
An astronomical breakthrough was made, which could help us understand the evolution of the universe.
Astronomers have made history by finding the exact location of a powerful, ultra-fast, space-bomber explosion about four billion light-years from Earth.
Rapid radio bursts are bright, powerful radio-energy explosions that travel through enormous intergalactic expanses. When they reach the Earth, they are often only electromagnetic whispers that lasts for milliseconds and require the discovery of sensitive radio telescopes.
The first rapid bursts of the radio station were detected only in 2007, and since then, only 85 of them have been able to observe specialists. Simply For one millisecond, they allocate as much energy as the Sun for 80 years. If someone explodes on the Sun, then he will popcorn into the solar system as far as Neptune.
Nobody was able to successfully determine the exact location in the universe of any of these fast radio explosions. Still.
Australian Square Kilometer Pathfinder (ASKAP) Radio Telescope in Western Australia tThe Common Organization of Scientific and Industrial Research (CSIRO) was able to determine precisely this location. The results were published in reviewing the journal Science evening on Thursday, June 27th.
The team made a high resolution map, indicating that the explosion originated on the outskirts of a galaxy measuring from the Milky Way, about four billion light years away from us. This galaxy forms several new stars. A rapid burst of radioactivity occurred on the outskirts of this galaxy, 13,000 light years from its center.
Thanks to this, the team has developed a new technology for freezing and storing ASKAP data in less than a second after the telescope has reached a splash. ASKAP is 36 dishes A radio telescope stretching for 6 km, but it works like a massive telescope. (Watch the video here.)
The blast had to travel different distances to each plate, reaching them all at a different time.
"Of these tiny time differences – just a fraction of a billionth of a second – we identified the home-made galaxy of an explosion and even its precise starting point, 13,000 light years from the center of the galaxy in the galactic suburbs, "said Adam Deller of the Swinburne University of Technology.
The secret in this time difference is: Astronomers compare the arrival time of a quick radio explosion for each meal using raw data (which are really astronomical) – they measure the difference in arrival time to 1/10and nanoseconds Firstly, the hardware-assembled hardware of the ASKAP "illuminator" has, on average, made up to one billion measurements per second, rather slowly, that the dedicated computer can search real-time. When there was a quick radio, the software detected it within 0.5 seconds, stopped the search and downloaded the raw data from each meal.
This allowed the team to measure the position of the fast radio stream with an accuracy of 1 / 50,000and degree. Or the width of human hair at a distance of 200 meters.
The team said it had found one quick radio burst of 600 trillion measurements. The point is not that fast radio bursts are rare, according to the team's data, about 2000 per day. The problem is that radio telescopes can only cover a small portion of the sky
Dr. Cat Bannister, a leading author, said:
"If we stood on the Moon and looked at the Earth with such precision, we could say not only from which city exploded an explosion, but also which postal code – and even what city block. "
Three optical telescopes, a very large telescope at the Southern Observatory in Chile, a Keck telescope in Hawaii, and the Gemini South telescope in Chile were also used to capture images of the galaxy.
Earlier it was known that two other fast radio surges "repeated" themselves. When the experts looked at the same place where they saw them again.
Dr. Jean-P McQurte of the University of Curtin of the International Center for Radio Astronomy Research said:
"These spikes change with the substance they encounter in space. Now we can determine where they come from, we can use them to measure the amount of substance in the intergalactic space. "
One unanswered question: What is this? the reason fast radio explosions? This is still an unresolved cosmic mystery. This can not be foreseen in advance, and until the time when the experts understand what is happening, the event has passed.
Astronomers ponder another question: HThe universe produces a radial burst that is thousands of times brighter than all radio emissions from its entire galaxy – and turns on and off for milliseconds? This is another awaiting discovery.
Watching for many rapid radio-astronomers, astronomers will be able to determine what is causing them, as well as use them as a tool for exploration of the spider web. This is a network of threads of dark matter between galaxies and galaxy conglomerates, which is important for understanding the evolution of the universe.
The distribution of galaxies and matter in the universe is not accidental. Galaxies are organized even today, in a huge space web. This web has dense domains, consisting of clusters and groups of galaxies, sparsely populated regions, devoid of galaxies, as well as strands that have thick regions, according to preliminary study in Russia Astrophysical Journal.
According to an article in Russia Science if there are many quick explosions, then the spider web and its intergalactic material can finally be studied properly. DM
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