Astronomers spent six years watching the unknown object explode again a million and billions of light-years away. They still don't know what violent power is, but a team thinks they've at least figured out when the extragalactic pyrotechnics might stop. If they are correct, the object will continue to shine externally throughout the summer - providing new clues to one of the great mysteries of modern astronomy.
"Every pulse tells you something new," says Kaustub Rajwade, an astronomer at the University of Manchester in Britain. "If we stopped at 10 drops, we wouldn't see it."
After extracting 250 extra light from published data over a period of six years, Rajwade is confident that he has enough evidence to make a case that the repeater operates regularly. The source is directly illuminated at random times for 90 days, he reckons and then remains silent for 67 days. The next cycle is repeated - for a total of 157 days. The source has to be changed three months after the rupture, the group predicts on June 2.
But the discovery has not yet been confirmed. Due to fierce competition for telescopic handling and timing, the group's 120-hour inspection fell well when they realized that the repeater was now "switched on," possibly throwing their results. Is. They need regular follow-up comments to see if the source actually keeps their estimated timetable.
"There is something interesting going on, and everyone can accept it," said Kelly Gordy, a radio astronomer at the University of Amsterdam, who was not involved in the research. "But we're going to see bigger data sets to validate and improve."
Other FRB researchers share her enthusiasm for further work. “This is really exciting stuff and the world community is good at getting ahead of it,” said Emanuel Fonseca, an astronomer and CHME collaborator at McGill University. "These kinds of searches really limit us to the kind of picture we have for these things someday."
The 157-day period (in contrast to the 16-day cycle of the second repeater) provides a new clue as to what can be prevented by explosions, somewhat slower than wild spinning and wild neutron star movements. Suggests that it is "difficult to understand internally." Said Gourardzi.
The new paradigm strongly supports the portrayal of personal objects from time to time. "My prediction would be the orbital system," said Rajwade. "The FRB is actually coming from a compact object like the Neutron Star, but it is much more orbiting: a massive star, a black hole, everything is currently on the table." FRBs may also have different origins.
As astronomers need more examples to make conclusive conclusions, he really wants to know whether additional patterns are hidden in the chaotic flicker of other known repeaters. The half-decade was carefully observed to highlight the half-year period of the original repeater. If other FRB sources have slower cycles, they can be difficult to manipulate. Only by collecting a large collection of radio explosions will astronomers begin to discover from a distance what is actually happening in these galaxies.
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