Science

CHIME telescope detects second repeating fast radio burst from other galaxy

CHIME telescope detects second repeating fast radio burst from other galaxy”

FRBs are short flashes of radio waves coming from far outside our Milky Way galaxy. Now, a new FRB is getting some serious attention for a very specific reason. They don't know whether the bursts are like flashbulbs, lighting up the sky in every direction, or focused beams, which would require less energy but must be more frequent for Earth to see so many of them.

Emily Petroff, an astronomer from ASTRON, the Netherlands Institute for Radio Astronomy, and an expert on FRBs, thought the methods "were particularly good" in these papers, and she liked how the CHIME astronomers didn't "over-interpret the data from shaky calibration".

But perhaps the most significant discovery so far is FRB 180814.J0422+73.

Or, more accurately, it was the only one.

Among the FRBs, was the second ever repeating fast radio burst recorded. Researchers have traced the signal to a specific location: a galaxy some 3 billion light years away.

Scientists have discovered mysterious signals coming from a galaxy 1.5 billion light years away. The mystery about why these bursts happen and where they come from continues, which always spurs believers to think that advanced extraterrestrial civilizations are creating them. "There are some models where intrinsically the source can't produce anything below a certain frequency", said Arun Naidu of McGill University in Canada, who was part of the team that detected the signal.

Excitement: Scientists get excited when they see repeating signals because it allows astronomers to make multiple observations of where the signals come from, The Verge reports.

Researchers recorded 13 bursts in a three-week period.

The "scattering" phenomenon was detected in the radio bursts, which can help answer questions about the atmosphere surrounding the origin.

CHIME is a fixed radio telescope that covers more area than a football field and passively scans the skies 24/7 as Earth rotates.

Of the 13 new blasts that were picked up, at least seven of them were recorded at 400 MHz - the lowest frequency of any yet discovered.

Another interesting twist has to do with the radio frequencies of the newly detected bursts.

He added: "That tells us something about the environments and the sources".

Despite the chaos, discoveries poured in-13 fast radio bursts were identified. "We haven't solved the problem, but it's several more pieces in the puzzle". "In the next phase, we plan to capture the full high-resolution data stream from the brightest bursts, which will let us better understand their positions, characteristics and magnetic environments".

The CHIME team, which designed and built the telescope, includes 14 scientists from the University of B.C. alongside others from McGill University, the University of Toronto, the Perimeter Institute for Theoretical Physics and the National Research Council of Canada. "It could be colliding black holes but you don't expect black holes to collide and then an hour later collide again, and then after that to collide again, right?"



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