Inhomogeneous Reionization and the Polarization of the Cosmic Microwave Background
The Astrophysical Journal1999Vol. 527(1), pp. L1–L4
Citations Over TimeTop 19% of 1999 papers
Abstract
In a universe with inhomogeneous reionization, the ionized patches create a second-order signal in the cosmic microwave background polarization anisotropy. This signal originates in the coupling of the free-electron fluctuation to the quadruple moment of the temperature anisotropy. We examine the contribution from a simple inhomogeneous reionization model and find that the signal from such a process is below the detectable limits of the Planck Surveyor mission. However, the signal is above the fundamental uncertainty limit from cosmic variance, so that a future detection with a high-accuracy experiment on subarcminute scales is possible.
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