This article has an erratum: [https://doi.org/10.1051/0004-6361/201629992e]
Distribution of the power per bin computed on simulated maps is significantly broader than the cosmic variance. The solid red line represents a Gaussian fit to the distribution in the multipole bin ℓ = 110 with a width Δℓ = 20 (black histogram). The dashed line represents the distribution expected for a Gaussian random field in that same bin.
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