21 Centimeter Fluctuations from Cosmic Gas at High Redshifts

@article{Zaldarriaga200421CF,
  title={21 Centimeter Fluctuations from Cosmic Gas at High Redshifts},
  author={M. Zaldarriaga and S. Furlanetto and Lars Hernquist Harvard University and Caltech},
  journal={The Astrophysical Journal},
  year={2004},
  volume={608},
  pages={622-635}
}
  • M. Zaldarriaga, S. Furlanetto, +1 author Caltech
  • Published 2004
  • Physics
  • The Astrophysical Journal
  • The relatively large Thomson optical depth, ?es, inferred recently from the WMAP observations suggests that the universe was reionized in a more complex manner than previously believed. However, the value of ?es provides only an integral constraint on the history of reionization and, by itself, cannot be used to determine the nature of the sources responsible for this transition. Here we show that the evolution of the ionization state of the intergalactic medium (IGM) at high redshifts can be… CONTINUE READING
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