University of Birmingham > Talks@bham > Astrophysics Talks Series > Insights into Cosmic Reionization from the First Three Billion Years of IGM Evolution

Insights into Cosmic Reionization from the First Three Billion Years of IGM Evolution

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  • UserGeorge Becker (Cambridge)
  • ClockWednesday 26 September 2012, 14:00-15:00
  • HouseNuffield G13.

If you have a question about this talk, please contact Ilya Mandel.

When and how the intergalactic medium became reionized reflects much of the key physics governing the formation of the first galaxies and quasars. A variety of observations have now begun to place rough constraints on when hydrogen (and later helium) reionization occurred. A more robust understanding, however, requires reconciling what we know about the ionizing sources with the long-term evolution of the IGM . I will present new measurements of the temperature and ionization state of the IGM in the reionization and post-reionization epochs. Combined with ground- and space-based observations of high-redshift galaxies, these measurements are providing new insights into the properties of the first galaxies, and a clearer picture of how these sources were able to ionize their surroundings.

This talk is part of the Astrophysics Talks Series series.

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