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Fig. 3.
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Elements of the matrix window that contribute to the power spectrum quadrupole. Top panel: ℓ = 2, ℓ′ = 2 block. Bottom panel: ℓ = 2, ℓ′ = 0 block in solid lines and the ℓ = 2, ℓ′ = 4 block in dashed lines. Each peak corresponds to a single wave number, ki, at which the power spectrum multipoles are estimated.
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