Results of MBB fits to IRAS and Planck data averaged within 8′ of the centre of the SCUBA-2 fields. Frame a shows the fits completed with 100–550 μm, 100–850 μm, and 100–1380 μm bands. Each marker corresponds to one field, and the dotted lines connect estimates of the same field. The median values calculated over all the fields are plotted with large symbols. The median values and the 1σ dispersion estimated from the interquartile ranges are quoted in the frame. Frame b shows the fits to the 100–1380 μm data without CO corrections (ΔCO = 0), with the default CO correction (ΔCO = 1), and with twice the default correction (ΔCO = 2). The median values are indicated by the three large triangles. The contours show the 67% (solid line) and 95% (dashed line) confidence regions for a 100–850 μm (frame a) and 100–1380 μm fit with ΔCO = 1 (frame b) calculated using the median error covariance matrix of the fields.
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