Puzzling new supernova might be from star producing antimatter

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An bursting star that continued to gleam for scarcely dual years — distinct many supernovae, that blur after a few weeks — is obscure astronomers and heading theorists, including UC Berkeley astrophysicist Daniel Kasen, to advise that a eventuality might be an instance of a star so prohibited that it produces antimatter in a core.

Stars would have to be unequivocally large to get this hot, Kasen said, that is because many astronomers insincere they existed, if during all, usually in a early years of a universe.

An artist’s sense of a supernova. Image credit: NASA, ESA, and G. Bacon, STSCI.

But justification that a star underwent steady eruptions make “something along these lines seem many plausible,” he said. Kasen, an associate highbrow of production and of astronomy and a scientist during Lawrence Berkeley National Laboratory, is a coauthor of a paper describing a uncanny bursting star published this week in a British journal Nature.

“It is probable that this was a outcome of star so large that it was able of generating pairs of anti-electrons and electrons in a core,” Kasen said. “That would means a star to go by phases of vigourously instability, ensuing in a array of splendid eruptions.”

Another co-author, Peter Nugent, a comparison staff scientist in a Computational Research Division during Berkeley Lab and an accessory highbrow of astronomy during UC Berkeley, helped lead observations of a outlandish star blast during the W.M. Keck Observatory in Hawaii.

“This is one of those head-scratcher form of events,” he said. “At initial we suspicion it was totally normal and boring. Then it only kept staying bright, and not changing, for month after month. Piecing it all together … has started to strew light on what this could be. However, I’d unequivocally like to find another one.”

Source: UC Berkeley

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