'These new results show that stars can meet their demise in some of the densest regions of the universe, where they can be driven to collide.'
There are two types of GRBs: short ones, which last for two seconds or less, and the long variety, which can go on for multiple minutes. Astronomers think short GRBs generally result from mergers between neutron stars, whereas long ones are usually spawned when stars at least 10 times more massive than the sun go boom inThe newly analyzed burst, known as GRB 191019A, is a long one; it lasted a little more than a minute.
Levan and his team studied GRB 191019A with the Gemini South telescope in Chile. These observations allowed the researchers to determine that the explosion occurred less than 100 light-years from the galaxy's center. And they saw no signs of a supernova in that area. "Our follow-up observation told us that, rather than being a massive star collapsing, the burst was most likely caused by the merger of two compact objects," Levan said."By pinpointing its location to the center of a previously identified ancient galaxy, we had the first tantalizing evidence of a new pathway for stars to meet their demise."
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