Searching for primordial localized features with CMB and LSS spectra

  title={Searching for primordial localized features with CMB and LSS spectra},
  author={Bin Hu and Jes'us Torrado},
  journal={Physical Review D},
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… 

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