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They describe how lightning might have occurred.
In April, several ground-based telescopes captured a very fast space flash. It wouldn’t be that special if it didn’t come directly from our galaxy.
Related article A mysterious lightning has come from a galaxy that looks like the Milky Way To read
Until now, all fast radio flashes, as this phenomenon is officially called, have come from faraway places in space.
They are one of the great cosmic mysteries. Since they last very little time, are weak and in most cases do not recur, it is difficult to find their source.
This time the scientists were lucky. They managed to find a glimpse of the Milky Way down to the mighty remnant of a star 30,000 light years away.
The study was published Wednesday in three studies in the journal Nature (1, 2, 3).
They were looking at the source
On Earth, we associate the word radio primarily with music stations, which we listen to through receivers with antennas. Radio waves are actually part of electromagnetic radiation, that is, they are made up of photons, just like visible light.
For telescopes to catch fast radio flashes, they need to know where to look.
The lightning from the Milky Way, which was given the designation FRB 200428, was found by scientists because they had been observing its source for a long time.
The magnetar with the mass name SGR 1935 + 2154 was very active at that time and emitted typical X-rays and gamma-ray bursts. It is located in the constellation of the Fox, thirty thousand light years from Earth.
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