New technique for identifying FRBs offers the promise of further discoveries. Astronomers from McGill University are part of an international team that has discovered 25 new sources of repeating fast radio bursts (FRBs), these explosions in the sky that come from far beyond the Milky Way. This disc
Artist’s conception of fast radio burst reaching Earth. Researchers have discovered 25 new sources of repeating fast radio bursts using innovative statistical tools. The study challenges previous assumptions that FRBs are singular events, suggesting they may all be repeating but are often inactive. The findings, which raise the total known FRB sources to 50, could help address unresolved questions about the origins of these astronomical phenomena.
“We combed through the data to find every repeating source detected so far, including the less obvious ones,” says Ziggy Pleunis, the first author of the paper who started working on the research as a PhD student at McGill University. He is now a Dunlap Postdoctoral Fellow at the Dunlap Institute for Astronomy and Astrophysics.
“These new discoveries will allow the scientific community to study more repeating FRBs in fantastic detail across the full electromagnetic spectrum and help answer a major open-question in the field: Do repeating and non-repeating FRBs originate from distinct populations?” Adds Aaron Pearlman, an FRQNT postdoctoral fellow at McGill University’s Trottier Space Institute who also collaborated on the paper. “I’m excited for the new insights that will be unlocked as a result of our study.
“We were able to hone in on some of these repeating sources and have already identified likely associated galaxies for two of them.”FRBs are considered one of the biggest mysteries in astronomy, but their exact origins are unknown. Astronomers do know that they come from far outside our Milky Way and are most likely produced by the cinders left behind after stars die.
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