Astronomers detect mysterious radio signal

Scientists discover mysterious radio signals from distant galaxy. What are they?

Scientists discover mysterious radio signals from distant galaxy. What are they?

That suggests they're far more common than that, and now that we know what to look for we're likely to find more. One FRB in particular, FRB 121102, is special because it's the only one that seems to be repeating its signal blasts on a regular basis. We have never seen anything like this before. "They have yet to see FRBs, but there's a good chance that they will get to see them".

This work was published today (Jan 9) in a set of papers in Nature. Fast Radio bursts last only a few milliseconds, but can put as much energy as the sun in the course of 10,000 years.

Astronomers have been finding FRB's since 2002, though dozens of discoveries have shed little light on what these signals are or where they originate. And when there are increased sources and more repeaters for the objective of conducting a study, the cosmic puzzles would become easier for them to have better understanding and it would then be clear that what the actual source of those blasts was.

"Good reported the first results from the Canadian Hydrogen Intensity Mapping Experiment (CHIME), a telescope that was originally created to explore the early Universe but has turned out to be ideal for detecting FRBs. Knowing that there is another suggests that there could be more out there", Ingrid Stairs, a member of the CHIME team and an astrophysicist at UBC, said.

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What did they find? "The reductions in brain size increase in a linear fashion as fat around the middle grew larger", Hamer wrote. Their findings revealed that those with higher ratios of obesity and waist-to-hip ratio had the lowest brain volume .

There are a number of theories about what's causing FRBs, including the possibility that a neutron star is releasing powerful signals after it exploded or even, albeit held by only a small minority, that they're signals from an alien civilization. The latest burst of signals were recorded at a frequency of 400 megahertz, whereas the first burst was recorded at a higher frequency of 700 megahertz. Once CHIME is running at full capacity, it may discover many, many more FRBs-potentially thousands per day.

The repeater, known as FRB 180814.J0422+73, is located about 1.5 billion light-years from Earth, astronomers told Space.com. This is only the second time a repeating burst has been recorded.

The presence of a second source of repeat FRBs - as well as the detection during CHIME's brief active pre-commission period - hints at the potential existence of two different types of radio bursts, one that happen only once and another that results in multiple bursts from one spot. "In principle, there might be two separate types of sources, as in the case of gamma-ray bursts (GRBs), where long-duration GRBs (lasting more than a few seconds) are linked to the collapse of massive stars and short-duration GRBs are linked to mergers of neutrons stars". "We haven't solved the problem, but it's several more pieces in the puzzle", says Tom Landecker, a CHIME team member from the National Research Council of Canada.

Fantastic - we're very much looking forward to that as well.

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