March 02, 2016

"A new paper has just hit the presses: For the first time ever, they've found an FRB that keeps repeating."

Washington Post: Published Wednesday in Nature, the study provides evidence that FRBs come from a source other than the massive star collision suggested by last week's researchers. By Rachel Feltman

'FRBs are bright radio flashes that last just a few milliseconds, and until now have never been known to repeat. Scientists believe they might occur thousands of times a day, but to date less than 20 events have been detected. Last week's study – also published in Nature – claimed to have pinpointed the exact origin point of an FRB for the first time ever.

'Now some scientists are questioning whether the signal used to track down the galaxy associated with the FRB was actually related to the radio burst at all. And this new study adds another possible point of contention: Based on the apparent age of the galaxy pinpointed in the first study and the strength of the radio burst, researchers had suggested a collision of massive stars as the cause of the mysterious signal.

'But massive collisions don't repeat – and now it seems apparent that FRBs can and do.

'"I don’t think the final nail is in the coffin on that," Jason Hessels, corresponding author of the latest study, told The Post in reference to the other team's research."There are more observations that need to be done, but it seems less convincing than it did last week." It is possible, he and other experts said, that there is more than one kind of FRB out there – some sent out by massive crashes in space, and others coming from different, more sustainable sources.'

"A repeating fast radio burst" by L.G. Spitler, et al here

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