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Articles tagged: Recombination era

  • big bang, epoch of Reionisation, first stars and galaxies, Recombination era, Sextans dwarf spheroidal galaxy 29 January 2018 Astronomers discover a fossil of the Reionisation era

    ...hydrogen atoms). This process of particles pairing up is called "Recombination" and it occurred approximately 240,000 to 300,000 years ...what appears to be a true fossil of the Reionisation era. After studying the star formation history of a galaxy ...

    • big bang
    • epoch of Reionisation
    • first stars and galaxies
    • Recombination era
    • Sextans dwarf spheroidal galaxy
  • Dark Matter, decaying dark matter (DDM) hypothesis, Hubble parameter, Planck, Vera Rubin 28 December 2016 Discrepancies in data suggest less dark matter now than after the big bang

    ... unstable particles with a rather long lifespan: in the era of the formation of hydrogen (hundreds of thousands of ...today's Universe there is 5% less dark matter than in the recombination era. We are not currently able to say how quickly this unstable...

    • Dark Matter
    • decaying dark matter (DDM) hypothesis
    • Hubble parameter
    • Planck
    • Vera Rubin

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