An Unexplained Repeating Radio Signal Is Coming From Inside Our Galaxy, Scientists Discover - It turns out that the first fast radio burst (FRB) ever found in the Milky Way is not a one-off. .
Just two weeks ago, scientists announced the first detection of an unexplained astronomical signal originating from inside our own galaxy, the Milky Way. Discovered in late April, the fast radio burst (FRB) was traced back to a churning type of dead star called a “magnetar” located some 30,000 light years away, providing an unprecedented opportunity to study the source of an FRB up close.
A few days later, on May 3, scientists at China’s Five-Hundred-Meter Aperture Spherical Radio Telescope (FAST)—the world’s largest single-dish radio telescope—detected a second extremely faint burst from the magnetar. Now, an international team of researchers led by Franz Kirsten, a postdoctoral researcher at the Chalmers University of Technology in Sweden, has revealed that this magnetar, called SGR 1935+2154, spewed out two other bright bursts in rapid succession in late May.
This means that the energetic object in our galactic backyard may produce rare “repeater” bursts that could have a “similar physical nature to the sources of (repeating) extragalactic FRBs,” according to a study published on Monday in Nature Astronomy. In other words, it might help us explain what produces these mysterious repeating signals, which can sometimes come in patterns.
This is the story: https://www.vice.com/en/article/bvxn...tists-discover
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