A distant neutron star could be the origin of the clear and periodic pattern of fast radio bursts. A strange and persistent radio signal from a far-off galaxy that appears to be flashing with surprising regularity has been detected by astronomers at MIT and elsewhere. The signal has been class
Astronomers detected a persistent radio signal from a far-off galaxy that appears to flash with surprising regularity. Named FRB 20191221A, this fast radio burst, or FRB, is currently the longest-lasting FRB, with the clearest periodic pattern, detected to date. Pictured is the large radio telescope CHIME that picked up the FRB.
The team of scientists hopes to detect more periodic signals from this source, which could then be used as an astrophysical clock. For instance, they could use the frequency of the bursts, and how they change as the source moves away from Earth, to measure the rate at which the universe is expanding.
On December 21, 2019, CHIME picked up a signal of a potential FRB, which immediately drew the attention of Michilli, who was scanning the incoming data.
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Mysterious cosmic 'heartbeat' detected billions of light-years from EarthRobert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.’s Open University. Follow him on Twitter sciencef1rst.
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