Mystery radio signal from galaxy four billion light-years away discovered by scientists
—meant that, at least in this case, a one-off event could not explain it. Since then, researchers have been able to trace back these radio signals to the star-forming region of a dwarf galaxy three billion light-years away, and are now working to determine the cause. One of the most popular theories is that the bursts are coming from a recently-formed magnetar—a spinning neutron star with an extremely high magnetic field.
Not only were they able to trace it to the galaxy it came from, they were also able to find its position within the galaxy—in the"galactic suburbs.""It's a very average galaxy," study author Ryan Shannon, from Australia's Swinburne University of Technology, toldArtist impression showing the detection of the location of FRB 180924.The galaxy where FRB 18092 came from is very different to that of FRB 121102.
The discovery has been welcomed by astronomers. Jason W. T. Hessels, from the University of Amsterdam, who was not involved in the study, said it was a"seminal result." He told:"To understand the physical origin of FRBs, and whether there are multiple types of FRB generators, we absolutely need precision localisations that unambiguously identify the host galaxies of these sources.
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