Fig. 8

Top: map in orthographic projection of the 150 GHz
amplitudes at ℓ = 80, computed from
the Planck 353 GHz data, extrapolated to 150 GHz, and normalized by
the CMB expectation for tensor-to-scalar ratio r = 1. The colours
represent the estimated contamination from dust in rd units
(see details in Sect. 5.3). The logarithm of
the absolute value of rd for a 400 deg2 patch is presented in the
pixel on which the patch is centred. As described in Sect. 3.3.2, the patches overlap and so their properties are not
independent. The northern (southern) Galactic hemisphere is on the left
(right). The thick black contour outlines the
approximate BICEP2 deep-field region (see Sect. 6). Bottom: associated uncertainty, σ(rd).
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