FRB Helps Reveal Missing Matter in the Universe
An international research team used a combination of radio and optical telescopes to identify the precise location of a Fast Radio Burst (FRB) in a distant galaxy, allowing them to conduct a unique census of missing matter in the Universe. FRBs are mysterious bright milliseconds-duration bursts of radio emissions originating billions of light years away. The bursts arrive first at high frequencies and then progressively sweep down to lower frequencies before disappearing completely and not recurring. FRBs are likely caused by extreme catastrophic events in the distant Universe, but their origin is still unknown. FRBs are similar in many ways to Gamma Ray Bursts (GRBs), but their association (if any) has not yet been established. Whereas GRBs are associated with supernova explosions, FRBs may result from Magnetars (extreme Magnetic Stars). FRBs are very difficult to detect and before this discovery only 16 had been detected.
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