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Astrophysical Bulletin

, Volume 68, Issue 4, pp 465–470 | Cite as

Power spectrum distortions in CMB map one-dimensional cross-sections depending on the cosmological model. II

  • Ya. V. Naiden
  • O. V. Verkhodanov
Article
  • 27 Downloads

Abstract

We examine the effect produced by the variation of cosmological parameters on the power spectra of one-dimensional cross-sections of the cosmic microwave background maps in a narrow range of spatial frequencies. Variation of the Ω b and ΩΛ density parameters has little effect on the power spectrum deviation from the one expected within the ΛCDM model. At the same time, variations in the spectral index of primordial fluctuations significantly affect the amplitude of the power spectrum of one-dimensional cross-sections. We observe a lack of signal generated by the even harmonics in the ILC map as compared with model expectations.

Keywords

cosmic background radiation 

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Copyright information

© Pleiades Publishing, Ltd. 2013

Authors and Affiliations

  1. 1.Special Astrophysical ObservatoryRussian Academy of SciencesNizhnii ArkhyzRussia

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