Cosmic Dark Radiation and Neutrinos

Figure 2

CMB temperature power spectrum. The model and the legend are the same as in Figure 1, the grey error bars correspond to Planck data. (a) The total CMB temperature power spectrum. (b) The ℓ axis has been rescaled by a factor 𝜃_𝑠(𝑁_eff)/𝜃_𝑠(𝑁_eff=3). (c) The total ISW×ISW contribution has been subtracted. (d) The total ISW (both the autocorrelation and the cross correlation) contribution have been subtracted.

(a)

(b)

(c)

(d)