mysterious radio signals From the closest star to Earth outside the Sun, The next centaurIt was discovered in December 2020 and caught the attention of the entire scientific community. Now, about a year later, its possible cause has been revealed.
call signal BLC-1 Breakthrough Listen Candidate-1 has been considered the first candidate to be tested for the existence of life alien, But new studies published in the journal natural astronomy They exclude this possibility, and even that it may be caused by some astronomical phenomena.
Possible human sign
More than 4 million narrowband signals were detected during the time Australia’s Murriyang Radio Telescope pointed at the star and a point of comparison in the sky. first document.
However, most of these were immediately excluded as they were detected in both directions, indicating that the cause was a local intervention. The remaining 5160 were selected from the so-called “events” during targeting The next centaur, but not to the point of comparison, but only one of the filter tests that eliminate easily explained cases survived.
“The event is not within the frequency range of any known local radio frequency interference (RFI) and has many characteristics compatible with a putative transmitter located in another star system,” the paper notes. At this point, any obscure origin has been ruled out.
second article Confirms that the suspicions were valid. Describes the processes carried out to investigate possible explanations for BCL-1, Including searching for similar signals in historical data and tracking notes The next centaur.
Nearly 60 “imitations” of BLC-1 They were found in other directions and through other telescopes. “Signals diverge at regular frequency intervals in the data, and these periods appear to correspond to multiples of the frequencies used by oscillators commonly used in various electronic devices,” said Dr. Sophia Sheikh of the University of California, Berkeley, lead author of the second. Article – commodity.
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