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2014

Searching for primordial localized features with CMB and LSS spectra

Hu, Bin, Torrado, Jesús

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Inspired by the study of mild transient reductions in the speed of sound of the adiabatic mode during inflation, we search for a primordial localized feature imprinted in cosmic microwave background and large-scale structure formation observables.

We find some common oscillatory patterns both in the Planck CMB temperature-temperature power spectrum and the WiggleZ galaxy spectrum.
By performing independent searches with these two data sets, we find a coincidence in the most significant mode previously found by Ach\'ucarro et al.
2013 by using only Planck data.

Searching for primordial localized features with CMB and LSS spectra · Around

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