Fig. A.1.

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High σ map dipole obtained by planarity of the octopole plus the QO alignment of an MC CMB map, part of the set . We show its quadrupole ℓ = 2 (left panel, first row) and octopole ℓ = 3 components (right panel, first row), the sum of these components (left panel, second row), and the corresponding σ map (right panel, second row), which is obtained with all the CMB multipole components. It is clear that the sum quadrupole+octopole is dominant. The region with high-intensity red-blue spots clearly corresponds to the region in which the σ map shows a positive dipole direction.
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