'A burst this bright arrives at Earth only once every 10,000 years.'
With this vast trove of information on the BOAT, astronomers realized it was a “more-complicated-than-usual GRB,” says, a Northwestern University astronomer and graduate student not involved in the discovery.
This is an illustration of the GRB’s location seen from Earth and our line of sight to it through the Milky Way.Why was the BOAT so bright? First, it’s nearby , which adds to its extreme shine—just like a light bulb appears brighter to your eyes closer up than across a room. But its brightness isn’t just a quirk of its proximity. It’s also “intrinsically the most energetic burst ever seen,” says Burns.
Astronomers suspect the jets blasted out of the black hole that created the BOAT were narrower than usual. Imagine the jet setting on a garden hose—and by lucky coincidence this particular hose was aimed directly at Earth. However, why these jets behaved like this is not understood.Scientifically, the BOAT has proven most of our existing models for these events to be incomplete,” says Burns.
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