Reionization by UV or X-ray sources

  title={Reionization by UV or X-ray sources},
  author={Sunghye Baek and Beno{\^i}t Semelin and P. Di Matteo and Yves Revaz and Françoise Combes},
  journal={Astronomy and Astrophysics},
We present simulations of the 21-cm signal during the epoch of reionization. We focus on properly modeling the absorption regime in the presence of inhomogeneous Wouthuysen-Field effect and X-ray heating. We ran radiative transfer simulations for three bands in the source spectrum (Lyman, UV, and X-ray) to fully account for these processes. We find that the brightness temperature fluctuation of the 21 cm signal has an amplitude greater than 100 mK during the early reionization, up to 10 times… 

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