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Fig. 6


Measured from the Planck data are shown as red filled circles. The theoretical TCMB(z) dependance in adiabatic expansion with TCMB(z = 0) = 2.726 K is presented as black solid line. Note that the line is not a fit to the data points. Here, error bars only account for the statistical dispersion. The uncertainties due to spectral responses are not displayed.

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