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

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

2001-12-11

arxiv.org/abs/astro-ph/0112247v1

Astronomy and Astrophysics

Astrophysics

7 pages, 5 figures

Scientific paper

10.1046/j.1365-8711.2002.05505.x

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.

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