Sunday 21 June 2015

Population III Stars | CR7 Galaxy

Why in news?
Scientists have discovered the brightest galaxy in the early universe that contains the first generation of stars, and have nicknamed it after popular Portuguese football player Cristiano Ronaldo (CR).
About Population III stars

  • First generation of stars — known as Population III stars — that were born out of the primordial material from the Big Bang. 
  • These Population III stars would have been enormous, several hundred or even a thousand times more massive than the Sun, blazing hot, and transient, exploding as supernovae after only about two million years.
  • But until now, the search for physical proof of their existence had been inconclusive.

About CR7
  • The newly found galaxy, labelled CR7, is three times brighter than the brightest distant galaxy known till now.

  • These massive, brilliant, and previously purely theoretical objects were the creators of the first heavy elements in history — the elements necessary to forge the stars around us today, the planets that orbit them, and life as we know it

[Source: The Hindu]


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