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    metal-free first stars tagged posts

    Galactic Archaeology

    October 24, 2020, Categories  Astronomy/Space

    ‘Galactic archaeology’ refers to the study of second generation stars to learn about the physical characteristics of the first stars, which disappeared only tens of millions of years after the Big Bang. A computational physics study modeled for the first time faint supernovae of metal-free first stars, yielding carbon-enhanced abundance patterns for star formation. Slice of density, temperature, and carbon abundance for a 13 solar mass progenitor model at times (left-right) 0.41, 15.22, and 29.16 million years after the supernovae explosion in a box with a side 2 kpc. Credit: Chiaki, et al.

    Supercomputers dig into first star fossils...

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