Scientists have found the location of many radio flashes with the help of the Hubble Space Telescope.
The cause of the occurrence of radio bursts (FRBs) lasting a few milliseconds in the universe has become a headache for researchers since the discovery of the phenomenon in 2007. Due to the rapid flash speed , FRBs are difficult to follow. Monitoring and research. Learning more about the origin of the intense, bright flashes could help scientists better understand what causes them.
An international team of astronomers has traced the locations of eight radio flashes. Although the origin of three of these flashes is not yet conclusive, the researchers used the Hubble Deep Space Imaging Instrument to identify the distant galaxies from which the flashes originated, including the location main body of their bodies in the galaxy. The results of the study will be published in the Astrophysical Journal.
Five flash waves originate from the spiral galaxy. It is the most common form of galaxy in the universe, and the Milky Way is in this form as well. A characteristic of spiral galaxies is the spiral arms where stars form. The location of radio flashes is along the arms of various spiral galaxies about 400 million to 9 billion light years from Earth.
Despite the flash, each FRB produces more energy than the Sun produces in a year. Researchers have detected more than 1,000 flashes since 2017, but have only found the source of 15 of them. They come from massive young galaxies in the distance. Astronomers located the FRB in the new study by combining visible, ultraviolet and near-infrared light imaging.
“This is the first high-resolution image of an FRB cluster,” said Alexandra Mannings, team leader, doctoral student in astronomy and astrophysics at the University of California, Santa Cruz. “Most galaxies are massive stars, relatively young and still forming. The images allow us to better understand the characteristics of the host galaxy, such as its mass and star formation rate, and to probe. happens in the position of the FRB “.
The team were surprised to find that the flash was coming from the torsion arm, said study co-author Wen-fai Fong, assistant professor of physics and astronomy at the University’s Weinberg School of Arts. Western, northern Illinois. Since twisted arms are the hallmark of star birth, this provides important clues that FRBs are involved in star formation.
The new discovery reveals that the stars that may be involved in the birth of lightning cannot be too young or too old. Previously, researchers speculated that FRBs could come from young stellar explosions or neutron star mergers. A neutron star is the extremely dense nucleus that remains when a star explodes. They are also a source of gamma flashes.
