The effect of reionization on the COBE normalization

Abstract

We point out that the effect of reionization on the microwave anisotropy power spectrum is not necessarily negligible on the scales probed by COBE. It can lead to an upward shift of the COBE normalization by more than the one-sigma error quoted ignoring reionization. We provide a fitting function to incorporate reionization into the normalization of the matter power spectrum.

3 pages LaTeX file with three figures incorporated (uses mn.sty and epsf)

References in corpus (4)

• Efficient Computation of CMB anisotropies in closed FRW models
• Cosmology from Maxima-1, Boomerang and COBE/DMR CMB Observations
• How exactly did the Universe become neutral?
• Towards a refined cosmic concordance model: joint 11-parameter constraints from CMB and large-scale structure

Cited by in corpus (5)

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• Constraints on Omega_m and sigma_8 from weak lensing in RCS fields
• Towards Cosmological Concordance on Galactic Scales
• Approximate Analytic Spectra of Reionized CMB Anisotropies and Polarization generated by Relic Gravitational Waves
• How is the Reionization Epoch Defined?