Supernova progenitor found?

(Phys.org) -- Type Ia supernovae are violent stellar explosions. Observations of their brightness are used to determine distances in the universe and have shown scientists that the universe is expanding at an accelerating rate. But there is still too little known about the specifics of the processes by which these supernovae form. New research led by Carnegie's Stella Kafka identifies a star, prior to explosion, which will possibly become a type Ia supernova. The work will be published by the Monthly Notices of the Royal Astronomical Society and is available online.

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