Addendum to "Superimposed Oscillations in the WMAP Data?"

Abstract

We elaborate further on the possibility that the inflationary primordial power spectrum contains superimposed oscillations. We study various effects which could influence the calculation of the multipole moments in this case. We also present the theoretical predictions for two other cosmological observables, the matter power spectrum and the EE polarization channel.

Figures (3)

• Figure 1: The $\mathrm{TT}$, $\mathrm{TE}$ and $\mathrm{EE}$ angular power spectra for the low frequency (LF) and high frequency (HF) models. A zoom of the $C_{\ell }^{{{\mathrm{T} \mathrm{T}}}}$'s in the first Doppler peak region is also shown (black curve) and compared with the standard slow-roll prediction (blue curve) calculated the with same cosmological parameters.
• Figure 2: Cumulative residual $\chi^2$ for the LF and HF models, compared to the standard slow-roll one. The dashed red curve represents the temperature contribution, the dotted blue curve the polarization contribution and the black curve is the sum of these two effects.
• Figure 3: Predicted matter power spectra for the LF and HF models (black curve), compared to the deconvolved SDSS data sloan. The convolved power spectra by the sloan survey windows function (blue curve) are also plotted.