WR 104, the star of dead

Discussion in 'Science and Technology' started by Dalia, Mar 20, 2019.

  1. Dalia
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    Dalia Platinum Member

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    Bonjour, WR 104 is a triple star system located about 7,500 light-years (2,300 pc) from Earth. The primary star is a Wolf-Rayet star, abbreviated as WR, with a B0.5 main sequence star in close orbit and another more distant fainter companion.
    The WR star is surrounded by a distinctive spiral Wolf–Rayet nebula, often referred to as a pinwheel nebula. The rotational axis of the binary system, and likely of the two closest stars, is directed approximately towards Earth. Within the next few hundred thousand years, the Wolf-Rayet star is predicted to probably become a core-collapse-supernova with a small chance of producing a long duration gamma-ray burst.
    The possibility of a supernova explosion from WR 104 having destructive consequence for life on Earth stirred interest in the mass media and several popular science articles have been issued in the press since 2008. Some articles decide to reject the catastrophic scenario, while others leave it as an open question.

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    WR 104: A nearby gamma-ray burst? - Bad Astronomy
     

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