Dodecahedral topology fails to explain quadrupole-octupole alignment

Abstract

The CMB quadrupole and octupole, as well as being weaker than expected, align suspiciously well with each other. Non-trivial spatial topology can explain the weakness. Might it also explain the alignment? The answer, at least in the case of the Poincare dodecahedral space, is a resounding no.

5 pages, 1 figure

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Cited by in corpus (7)

• Large-scale alignments from WMAP and Planck
• A test of the Poincare dodecahedral space topology hypothesis with the WMAP CMB data
• Large scale alignment anomalies of CMB anisotropies: a new test for residuals applied to WMAP 5yr maps
• CMB Alignment in Multi-Connected Universes
• The spectral action and cosmic topology
• Topology beyond the horizon: how far can it be probed?
• Platonic topology and CMB fluctuations: Homotopy, anisotropy, and multipole selection rules