The primordial baryonic clouds and their contribution to the CMB anisotropy and polarization formation

Abstract

We discuss possible distortions of the ionization history of the Universe in the model with small scale baryonic clouds. The corresponding scales of the clouds are much smaller than the typical galactic mass scales. These clouds are considered in a framework of the cosmological model with the isocurvature and adiabatic perturbations. In this model the baryonic clouds do not influence on the cosmic microwave background anisotropy formation directly as an additional sources of perturbations, but due to change of the kinetics of the hydrogen recombination . We also study the corresponding distortions of the anisotropy and polarization power spectra in connection with the launched MAP and future PLANCK missions.

7 pages, 5 figures

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• Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant
• Adiabatic and Isocurvature Perturbations from Inflation: Power Spectra and Consistency Relations
• Constraining Isocurvature Perturbations with CMB Polarization
• Attractors and Isocurvature Perturbations in Quintessence Models
• Inhomogeneous Big Bang Nucleosynthesis: Upper Limit on Omega_b and Production of Lithium, Beryllium, and Boron

Cited by in corpus (13)

• Inhomogeneous baryogenesis, cosmic antimatter, and dark matter
• Ionization history of the cosmic plasma in the light of the recent CBI and future PLANCK data
• Possible extensions of the standard cosmological model: anisotropy, rotation, and magnetic field
• Recombining WMAP: constraints on ionizing and resonance radiation at recombination
• Delayed Recombination and Cosmic Parameters
• Late reionizations of the Universe and their manifestation in the CMB data
• Cosmological constraints in the presence of ionizing and resonance radiation at recombination
• Delayed Recombination and Standard Rulers
• Observational estimates of the initial power spectrum at small scale from Lyman-$\alpha$ absorbers
• Antimatter from the cosmological baryogenesis and the anisotropies and polarization of the CMB radiation
• Inhomogenous Primordial Baryon Distributions on Sub-Galactic Scales: High-z Galaxy Formation with WDM
• The Accelerated Recombination, and the ACBAR and WMAP data
• Probing the last scattering surface through the recent and future CMB observations