Open AccessThe primordial baryonic clouds and their contribution to the cosmic microwave background anisotropy and polarization formation
Author(s) -
Naselsky Pavel,
Novikov Igor
Publication year - 2002
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2002.05505.x
Subject(s) - physics , cosmic microwave background , astrophysics , planck , adiabatic process , anisotropy , polarization (electrochemistry) , astronomy , baryon , structure formation , reionization , galaxy , redshift , chemistry , quantum mechanics , thermodynamics
We discuss possible distortions of the ionization history of the Universe in a 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 isocurvature and adiabatic perturbations. In this model the baryonic clouds do not influence the cosmic microwave background anisotropy formation directly as additional sources of perturbations, but they can change 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.