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Constraints on inflationary features in the primordial power spectrum with the Planck data
M. Benetti
243 - 249
10.3254/978-1-61499-476-3-243
Proceedings of the International School of Physics "Enrico Fermi"
Volume 186: New Horizons for Observational Cosmology
Abstract

We present new constraints on possible features in the primordial inflationary density perturbations power spectrum in the light of the recent Cosmic Microwave Background Anisotropies measurements from the Planck satellite. We found that the Planck data hints at the presence of features in two different ranges of angular scales, corresponding to multipoles 10<ℓ<60 and 150<ℓ<300, with a decrease in the best-fit χ2 value with respect to the featureless “vanilla” ΛCDM model of Δχ2~9 in both cases.

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