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Population III




A hypothetical population of stars which consist almost entirely of hydrogen and helium and virtually no heavy elements (in astrophysical terms, elements heavier than helium) in their surface layers. Population III stars are theorized to have been the first stars that formed after the Big Bang when there were no virtually no heavy elements in space apart from low concentrations of a few isotopes such as lithium 7 formed in the Big Bang itself.


Related categories

   • TYPES OF STARS
   • STELLAR ASTROPHYSICS