Signature of patchy reionization in the polarization anisotropy of the CMB

  title={Signature of patchy reionization in the polarization anisotropy of the CMB},
  author={Olivier Dor'e and Gilbert P. Holder and Marcelo A. Alvarez and Ilian T. Iliev and Garrelt Mellema and Ue-li Pen and Paul R. Shapiro},
  journal={Physical Review D},
The inhomogeneous ionization state of the universe when the first sources of ionizing radiation appeared should lead to anisotropies in the polarization of the cosmic microwave background. We use cosmological simulations of the process by which the first sources ionized the intergalactic medium to study the induced polarization anisotropies. We find that the polarization anisotropies have rms of order {approx} 0.01 {mu}K, and local peak values of {approx} 0.1 {mu}K, smaller than those due to… 

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