Hubble Reveals Surviving Companion Star in Aftermath of Titanic Supernova Explosion
Supernova 2013ge is depicted in this artist's illustration, together with its companion star in the lower right
The supernova's blast wave hits the companion star, yet it is not destroyed
Astronomers noticed the supernova's ultraviolet (UV) radiation diminishing over time, revealing a nearby second source of UV light that remained brilliant
According to the idea, the two enormous stars formed a binary pair and the current survivor sucked out its partner's outer hydrogen gas shell before exploding
The companion star will eventually go supernova as well. NASA, ESA, and Leah Hustak (STScI)
The discovery helps explain the puzzle of hydrogen loss pre-supernova, and supports the theory that most massive stars are paired.
What happened to the hydrogen?
Hubble's discovery of a surviving companion star on the scene of supernova 2013ge backs up theories that companion stars are to blame
syphoning away their companions' outer shells before death
The find also supports the hypothesis that the majority of large stars begin and evolve as binary systems
It could also be a prelude to another cosmic drama: the surviving, huge companion star will ultimately blow supernova
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