"Repeating Radio Bursts" Detected From Distant Galaxy

Katie Ramirez
January 10, 2019

"Until now, there was only one known repeating FRB.", astronomer Ingrid Stairs, also a member of the CHIME team, said.

The findings were presented during a meeting held by the American Astronomical Society in Seattle, Wash., on Thursday.

In 2007, an astronomy professor and his student detected a fast radio burst, a phenomenon that has been detected many times in the years since.

The telescope processes radio signals recorded by thousands of atennas with a large signal processing system and is the largest of any on earth.

A fantastically bright repeating radio signal from billions of light-years away has been discovered, only the second of its kind ever found. Scientists now believe these signals are much more common than previously thought.

Before CHIME began to gather data, some scientists wondered if the range of radio frequencies the telescope had been created to detect would be too low to pick up fast radio bursts.

Mysterious repeating energy bursts from deep space that some experts have suggested could be evidence of advanced aliens have been detected for only the second time in history.

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Researchers at the University of British Columbia in Canada said they've discovered the second so-called "repeating fast radio burst" (FRB) ever recorded, according to a news release published January 9.

Artist's impression of the active galactic nucleus shows the supermassive black hole at the center of the accretion disk sending a narrow high-energy jet of matter into space, perpendicular to the disc in this image by Science Communication Lab in Kiel Germany, released on July 12, 2018.

FRBs are flashes of radio waves that last just milliseconds before disappearing; the signals originate from unknown sources outside the Milky Way, though theories range from blackholes and stars producing magnetic fields to extraterrestrials.

"We have discovered a second repeater and its properties are very similar to the first repeater".

"This is good news for radio telescopes that are sensitive at lower radio frequencies", she said.

'And with more repeaters and more sources available for study, we may be able to understand these cosmic puzzles - where they're from and what causes them'.

While most FRBs have been spotted at wavelengths of a few centimetres, the latest FRBs were detected at wavelengths of almost a metre, which opens up new lines of inquiry, according to the CHIME team. "We estimate that there are up to 1,000 of these bursts in the entire sky every day", corresponding author Shriharsh Tendulkar of McGill University said in an email. The unexpectedly low 400 MHz frequency suggests FRBs might be detected at even lower frequencies, but another instrument would have to be used for that, as this is as low as CHIME can go. Launched in 2017, the project is a collaboration of Canadian scientists from the University of British Columbia, McGill University, the University of Toronto, the Perimeter Institute for Theoretical Physics, and the National Research Council of Canada. "But it has to be in some special place tog I've us all the scattering that we see".

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