A ghost particle that collided with Antarctica in 2019 was found from A. A black hole A new study has shown that the star is torn, acting as a giant accelerator of space particles.
The researchers studied a type of subatomic particle known as the Neutrino that is formed by nuclear reactions and the radioactive decay of unstable atoms. Neutrinos are extremely light – about 500,000 times lighter than electrons.
Neutrinos have no electrical charge and rarely interact with other particles. This can easily be passed through the material – a light year worth about 5.8 trillion kilometers (9.5 trillion kilometers) would stop about half of the neutrinos flying through it.
But neutrinos sometimes meet atoms. When this happens, it illuminates flashes of light previously noticed by scientists to confirm its presence.
In a new study, researchers investigated the ultra-energy neutrinos they discovered in 2019. October 1, using the Ice Cube neutrino observatory at the South Pole.
“It faced Antarctic ice with an impressive energy of more than 100 teraelectric volts,” said Anna Frankoviak, co-author of the study who is currently working at the University of Bochum in Germany. “By comparison, this is at least 10 times the maximum particle energy that can be achieved by the most powerful particle accelerator in the world. The great hadron collision. “
Video: The neutrino returns to the black hole splitting the star
Related: The strange behavior of neutrinos may explain the long-standing mystery of antimatter
To discover the origin of such a powerful neutrino, scientists traced its path through space. They discovered that it is likely to originate from a galaxy called 2MASX J20570298 + 1412165 in the constellation of Dolphins, a dolphin 750 million light-years from Earth.
About six months before scientists discovered a high-energy neutrino, astronomers saw a transient Zwicky vehicle light up on Mount Palomar in California. This light was most likely caused by a black hole tearing the star, a so-called flood disturbance event called AT2019dsg.
Researchers say the star has approached a supermassive black hole at the center of the galaxy 2MASX J20570298 + 1412165, which is about 30 million times larger than the sun. Then it was torn apart by the enormous force of gravity of the black hole – the extreme version of this performance of the Moon causes the tides to rise and fall on Earth.
The researchers found that nearly half of the star’s wreckage was thrown into space, while the other half settled into a circular disk around the black hole. When matter from this decaying star entered this disk, it became hot and bright enough for astronomers to see from Earth.
Researchers believe this neutrino has only one chance out of 500 to coincide with the event. This suggests that researchers most likely discovered the first particle A. There were floods and flood interruptions.
“Theoretical work predicted that neutrinos could occur due to flood disturbances,” said Space Stein lead author Robert Stein, a multimodal astronomer at the German Center for Electronic Synchrotron (DESY) in Zeuthen, Germany: “Theoretical work predicts that neutrinos could This work is the first evidence of observation. To substantiate this claim. “He and his colleagues They describe their findings in detail online on February 21 in the journal Natural Astronomy.
These new discoveries highlight flood disturbances about which much is still unknown. The researchers specifically claimed that the neutrino originated from currents of matter that exploded at the speed of light near the clusters of the disk in the black hole, said ASU astrophysicist Cecilia Lunardini. She and co-author of a study by Walter Winter conducted by DESY They describe their findings in detail online on February 22 in the journal Natural Astronomy.
Although these relativistic currents probably emitted many different types of particles, they were mostly electrically charged particles directed by intergalactic magnetic fields before they reached Earth. In contrast, neutrinos (which have no charge) can move directly like light rays from tidal turbulence events.
The discovery marks only the second time scientists have identified a source of high-energy neutrinos, Stein said. For the first time, in 2018, astronomers find such a neutrino next to Blazer TXS 0506 + 056, a massive elliptical galaxy with an extremely fast black hole at its core.
“Knowing where high-energy neutrinos come from is a big issue in particle astrophysics,” Stein said. “Now we have more evidence that it could be caused by floods or floods.”
One of the unusual aspects of this discovery was how the neutrino was discovered only half a year after the black hole began to swallow the star. This suggests that a case of flood disturbance could behave similarly. The huge space particle accelerator Stein has been talking for months.
Stein said that although researchers discovered only one neutrino from a flood turbulence event, “to detect at least one, that event must be billions and billions.” – We were lucky to see him.
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