The red supergiant was 10 times larger than our sun, scientists say.
A group of scientists announced Thursday that they captured the explosive end to a red supergiant star's life for the first time, documenting its death throes as it collapsed into a type II supernova. Scientists from Northwestern University and the University of California, Berkeley, whoon the star's death, called the findings a"breakthrough" in their understanding of how the massive stars die.
Previously, scientists believed red supergiants died quietly, fading for some time before they became supernovas — but the team said it found bright radiation from the observed red supergiant in the year before its death. That radiation suggests that there were significant changes in its internal structure that caused a violent ejection of gas just before its collapse, the release said.
A rendering of a red supergiant star transitioning into a Type II supernova provided by Northwestern University."It's like watching a ticking time bomb," said Raffaella Margutti, an adjunct associate professor at CIERA and the paper's senior author, said in the release."We've never confirmed such violent activity in a dying red supergiant star where we see it produce such a luminous emission, then collapse and combust, until now.
France Dernières Nouvelles, France Actualités
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