Cosmic microwave background radiation in an inhomogeneous spherical space

Details Cosmic microwave background radiation in an inhomogeneous spherical space Cosmic microwave background radiation in an inhomogeneous spherical space

Nov 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011phys...84e5901a&link_type=abstract

Physica Scripta, Volume 84, Issue 5, pp. 055901 (2011).

Physics

Scientific paper

We analyse the cosmic microwave background (CMB) radiation in spherical three-spaces with nontrivial topology. The focus is on an inhomogeneous space which possesses observer-dependent CMB properties. The suppression of the CMB anisotropies on large angular scales is analysed with respect to the position of the CMB observer. The equivalence of a lens space to a Platonic cubic space is shown and used for the harmonic analysis. We give the transformation of the CMB multipole radiation amplitude as a function of the position of the observer. General sum rules are obtained in terms of the squares of the expansion coefficients for invariant polynomials on the three-sphere.

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