Browsing Research Articles (Physics) by Author "Ballardini, M."

Now showing items 1-5 of 5

    • A comparison of Einstein-Boltzmann solvers for testing General Relativity 

      Bellini, Emilio; Barreira, A.; Frusciante, N.; Ballardini, M. (American Physical Society, 2018)
      We compare Einstein-Boltzmann solvers that include modifications to General Relativity and find that, for a wide range of models and parameters, they agree to a high level of precision. We look at three general purpose codes ...

    • Planck 2018 results IX. Constraints on primordial non-Gaussianity 

      Ballardini, M.; Akrami, Y.; Arroja, F. (EDP Sciences, 2020)
      We analyse the Planck full-mission cosmic microwave background (CMB) temperature and E-mode polarization maps to obtain constraints on primordial non-Gaussianity (NG). We compare estimates obtained from separable ...

    • Planck 2018 results VIII. Gravitational lensing 

      Ballardini, M.; Aghanim, N.; Akram, Y. (EDP Sciences, 2020)
      We present measurements of the cosmic microwave background (CMB) lensing potential using the final Planck 2018 temperature and polarization data. Using polarization maps filtered to account for the noise anisotropy, we ...

    • Planck 2018 results. XI. Polarized dust foregrounds 

      Ballardini, M.; Akram, Y.; Ashdown, M. (EDP Sciences, 2020)
      The study of polarized dust emission has become entwined with the analysis of the cosmic microwave background (CMB) polarization in the quest for the curl-like B-mode polarization from primordial gravitational waves and ...

    • Planck intermediate results. LVII. Joint Planck LFI and HFI data processing 

      Ballardini, M.; Akrami, Y.; Andersen, K. J. (ESO, 2020)
      We present the NPIPE processing pipeline, which produces calibrated frequency maps in temperature and polarization from data from the Planck Low Frequency Instrument (LFI) and High Frequency Instrument (HFI) using ...