domingo, 14 de junio de 2020

Astronomers spot first fast radio burst in the Milky Way

Astronomers spot first fast radio burst in the Milky Way

Artist’s impression of a magnetar



Bizarre star offers clues to mystery signals

For a fraction of a second in late April, a hyper-magnetized star in the Milky Way suddenly blasted out radio energy. Now scientists say that this sudden, strange blip could help to explain one of astronomy’s biggest puzzles: what powers the hundreds of other mysterious fast radio bursts (FRBs) that have been spotted much farther away in the Universe. Many astronomers think that fast radio bursts — brief but powerful cosmic flashes that flare for just milliseconds — come from magnetars, but haven’t found the link. “Here is something that gets close to the insane intensity of cosmic FRBs, but that is happening not so far away,” says astronomer Sarah Burke. “It’s a fantastic opportunity to learn about at least one of the sources that could be causing FRBs.”
Nature | 5 min read

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