The "tilt" of this plot is usually indicated by a value of the primordial spectral index different from 1, and the peaks on this plot represent frozen modes.
The "tilt" of this plot is usually indicated by a value of the primordial spectral index different from 1, and the peaks on this plot represent frozen modes. This plot is obtained by taking the Fourier transform of the two-point correlation function, and increasing the value of the "omega-sub-m" parameter depresses the peaks in this plot. Originally produced from data gathered by the FIRAS (*) instrument, this plot's first peak at an l  of about 200 indicates the flatness of the universe, while the ripples at high values of l come from baryon oscillations. The fact that this plot is scale free provides evidence for inflation. For 10 points, identify this plot which contains power in microkelvin squared on the y axis against multipole moment on the y axis, indicating how much power is contained in every angular scale of a certain "halo" remaining from the Big Bang, the most precise data for which comes from WMAP.
The "tilt" of this plot is usually indicated by a value of the primordial spectral index different from 1, and the peaks on this plot represent frozen modes.
temperature [or angular] power spectrum of the cosmic microwave background [accept any answers that mention the words "power spectrum" and "CMB"]