Probing the Reionization History of the Universe using the Cosmic Microwave Background Polarization

@article{Kaplinghat2003ProbingTR,
  title={Probing the Reionization History of the Universe using the Cosmic Microwave Background Polarization},
  author={Manoj Kaplinghat and Mike Chu and Zolt{\'a}n Haiman and Gilbert P. Holder and Lloyd Knox and Constantinos Skordis},
  journal={The Astrophysical Journal},
  year={2003},
  volume={583},
  pages={24-32}
}
The recent discovery of a Gunn-Peterson (GP) trough in the spectrum of the redshift 6.28 SDSS quasar has raised the tantalizing possibility that we have detected the reionization of the universe. However, a neutral fraction (of hydrogen) as small as 0.1% is sufficient to cause the GP trough; hence, its detection alone cannot rule out reionization at a much earlier epoch. The cosmic microwave background (CMB) polarization anisotropy offers an alternative way to explore the dark age of the… 

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References

SHOWING 1-10 OF 79 REFERENCES
Polarization of the cosmic microwave background from nonuniform reionization.
We study the polarization anisotropy in the cosmic microwave background (CMB) resulting from patchy reionization of the intergalactic medium by stars in galaxies. It is well known that the
How is the reionization epoch defined
ABSTRA C T We study the effect of a prolonged epoch of reionization on the angular power spectrum of the cosmic microwave background. Typically reionization studies assume a sudden phase transition,
The Optical Depth to Reionization as a Probe of Cosmological and Astrophysical Parameters
Current data of high-redshift absorption-line systems imply that hydrogen reionization occurred before redshifts of about 5. Previous works on reionization by the first stars or quasars have shown
The Detectability of High-Redshift Lyα Emission Lines prior to the Reionization of the Universe
For a source of Lyα radiation embedded in a neutral intergalactic medium (IGM) prior to the reionization epoch, the Lyα emission line is strongly suppressed by the intervening IGM. The damping wing
H I 21 Centimeter Absorption beyond the Epoch of Reionization
We explore the possibility of detecting H I 21 cm absorption by the neutral intergalactic medium (IGM) toward very high redshift radio sources. The epoch considered is between the time when the first
Approaching Reionization: The Evolution of the Lyα Forest from z = 4 to z = 6
We analyze the Lyα forest properties of a sample of 15 high-redshift quasars lying between z = 4.42 and z = 5.75, using high signal-to-noise spectra obtained with the Echellette Spectrograph and
Reionization of the Inhomogeneous Universe
A model of the density distribution in the intergalactic medium (IGM), motivated by that found in numerical simulations, is used to demonstrate the effect of a clumpy IGM and discrete sources on the
Radio Signatures of H I at High Redshift: Mapping the End of the “Dark Ages”
The emission of 21 cm radiation from a neutral intergalactic medium (IGM) at high redshift is discussed in connection with the thermal and ionization history of the universe. The physical mechanisms
On the Direct Detectability of the Cosmic Dark Ages: 21 Centimeter Emission from Minihalos
In the standard cold dark matter (CDM) theory of structure formation, virialized minihalos (with Tvir 104 K) form in abundance at high redshift (z > 6), during the cosmic "dark ages." The hydrogen in
Evolution of the Ionizing Radiation Background and Star Formation in the Aftermath of Cosmological Reionization
The temporal evolution of the ionizing UV background radiation field at high redshift provides a probe of the evolution of the early star formation rate. By comparing the observed levels of
...
...