'There are not many things in the universe that emit strictly periodic signals'.
, or FRB. These are very strong bursts of radio waves of unknown origin that typically last a few milliseconds at a time.The newly-discovered FRB lasts up to three seconds, making it roughly 1,000 times longer than the average FRB, and the longest FRB detected to date. During those three seconds, the team of astronomers also detected bursts of radio waves repeating every 0.2 seconds in a periodic pattern.
"There are not many things in the universe that emit strictly periodic signals," explained Daniele Michilli, a postdoc in MIT's Kavli Institute for Astrophysics and Space Research."Examples that we know of in our own galaxy are radio pulsars and magnetars, which rotate and produce a beamed emission similar to a lighthouse. And we think this new signal could be a magnetar or pulsar on steroids.
The first FRB was discovered as recently as 2007. Since then, hundreds of similar signals have been discovered throughout the universe. The new signal was detected by the Canadian Hydrogen Intensity Mapping Experiment, or CHIME. It was designed to pick up radio waves emitted by hydrogen from the earliest stages of the universe.
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