WASHINGTON (REUTERS) - Scientists have observed the biggest supernova - stellar explosion - ever detected, the violent death of a huge star up to 100 times more massive than our sun in a faraway galaxy.. Read more at straitstimes.com.
WASHINGTON - Scientists have observed the biggest supernova - stellar explosion - ever detected, the violent death of a huge star up to 100 times more massive than our sun in a faraway galaxy.
They had been part of what is called a binary system with two stars gravitationally bound to each other. "We found that the supernova was able to become so bright because of a powerful collision between the debris ejected by the explosion and a shell of gas shaken off by the star a few years earlier," said Nicholl, lead author of the study published this week in the journal Nature Astronomy.
The researchers, who observed the explosion for two years until it diminished to 1 percent of its maximum brightness, said it may have been an example of an extremely rare"pulsational pair-instability" supernova.
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