Cross-tests of CMB features in the primordial spectra

Abstract

The recent Planck data on the power spectrum of temperature anisotropies of the cosmic microwave background marginally support deviations from the $\Lambda$CDM model at several multipoles. With a view towards current and forthcoming observational surveys, we trace these features to other observables like the scalar bispectrum and the tensor power spectrum. A possible detection of such bumps in these channels would increase their statistical significance shedding light on the ultra violet mechanisms responsible for their appearance in the data.

7 pp., 1 figure. Contribution to the proceedings of "STARS2017 - 4th Caribbean Symposium on Cosmology, Gravitation, Nuclear and Astroparticle Physics / SMFNS2017 - 5th International Symposium on Strong Electromagnetic Fields and Neutron Stars", 7 to 13 of May, 2017, Havana and Varadero, Cuba. Talk also given in PASCOS-17 and COSMO-17

References in corpus (8)

• Primordial power spectrum from Planck
• Whipped inflation
• Combining power spectrum and bispectrum measurements to detect oscillatory features
• Untangling features in the primordial spectra
• Primordial Features as Evidence for Inflation
• Combined features in the primordial spectra induced by a sudden turn in two-field DBI inflation
• Corrections to $n_s$ and $n_t$ from high scale physics
• Generalized Slow Roll for Tensors