Repeating Fast Radio Burst Detected for Second Time in History

Scientists Find 13 Mysterious Deep Space Flashes Including 2nd Known'Repeater

Radio Signals From A Galaxy Light Years Away Have Been Reported

The radio waves were detected by the Canadian Hydrogen Intensity Mapping Experiment (CHIME), the world's most powerful radio telescope, spread across an area as big as a football pitch.

This second repeater, found among the first few CHIME/FRB discoveries, suggests that there exists - and that CHIME/FRB and other wide-field, sensitive radio telescopes will find - a substantial population of repeating FRBs.

The telescope has been in use for only a year, detecting 13 of the radio bursts nearly immediately, including the repeater.

The CHIME observatory in British Columbia detected 13 fast radio bursts, known as FRBs, and among them was a very unusual repeating signal that scientists say originated from the same source.

Having two sets of repeating bursts could also allow scientists to understand what distinguishes them from single bursts, helping them understand more about their source and watch for future blasts.

They're probably generated by extremely energetic events, since most FRBs are detected from a great distance. CHIME can only record signals between 400 MHz and 800 MHz. "The origin of the bursts, the nature of the persistent source and the properties of the local environment are still unclear".

CHIME is a collaboration of more than 50 scientists led by the University of British Columbia, McGill University, the University of Toronto, and the National Research Council of Canada. "There are some models where intrinsically the source can't produce anything below a certain frequency", IANS quoted team member Arun Naidu of McGill University as saying.

One of the FRBs, which has been called "the repeater", came from a region of space some 1.5 billion light years away, the team behind the discovery noted in the journal Nature.

Interestingly, the energy that FRBs emit in one millisecond is the same as what the sun emits in one entire day! The scattering details suggest there is something unique about structural characteristics of FRB sources.

"An FRB emitted from a merger of two neutron stars, or a neutron star and a black hole, for example, can not repeat". "But it has to be in some special place tog I've us all the scattering that we see".

In addition to the second repeater, the researchers were able to shed new light on FRBs because they detected them at a much lower frequency than previously recorded finds.

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.

In a Perimeter Institute video (below), Smith said the telescope generates an "avalanche of data, a hundred times more data than is generated by any other radio telescope".

But consecutive radio bursts are a special case.

He added: "That tells us something about the environments and the sources". Whatever they are, CHIME's initial detections suggest that the $13 million radio telescope will be a powerful tool for tracking down more of the bursts.

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