Star Formation at the Twilight of the Dark Ages: Which Stars Reionized the Universe?

@article{Somerville2003StarFA,
  title={Star Formation at the Twilight of the Dark Ages: Which Stars Reionized the Universe?},
  author={Rachel S Somerville and Mario Livio},
  journal={arXiv: Astrophysics},
  year={2003}
}
We calculate the global star formation rate density (SFRD) from z ~ 30-3 using a semi-analytic model incorporating the hierarchical assembly of dark matter halos, gas cooling via atomic hydrogen, star formation, supernova feedback, and suppression of gas collapse in small halos due to the presence of a photoionizing background. We compare the results with the predictions of simpler models based on the rate of dark matter halo growth and a fixed ratio of stellar-to-dark mass, and with… Expand

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