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    type Ic supernova tagged posts

    Stars Exploding as Supernovae lose their mass to companion stars during their lives

    March 10, 2019, Categories  Astronomy/Space

    A massive star evolving and becoming a red supergiant, and finally exploding as a supernova. A binary companion may strip the star’s hydrogen away (producing supernova type IIb/Ib), and for a more massive star the stellar wind expels the remaining helium layer (producing supernova type Ic).
    Credit: Keiichi Maeda

    Stars over eight times more massive than the Sun end their lives in supernovae explosions. The composition of the star influences what happens during the explosion.

    A considerable number of massive stars have a close companion star. Led by researchers at Kyoto University, a team of international researchers observed that some stars exploding as supernovae may release part of their hydrogen layers to their companion stars before the explosion.

    “In a binary star system, the star ...

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