Planck 2018 results: V. CMB power spectra and likelihoods
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Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
EDP Sciences
Abstract
We describe the legacy Planck cosmic microwave background (CMB) likelihoods derived from the 2018 data release. The overall approach is similar in spirit to the one retained for the 2013 and 2015 data release, with a hybrid method using different approximations at low (ℓ < 30) and high (ℓ ≥ 30) multipoles, implementing several methodological and data-analysis refinements compared to previous releases. With more realistic simulations, and better correction and modelling of systematic effects, we can now make full use of the CMB polarization observed in the High Frequency Instrument (HFI) channels.
Description
Keywords
Cosmic background radiation, Cosmology: observations, Cosmological parameters, Methods: data analysis
Citation
Aghanim, N. et al . (2020). Planck 2018 results: V. CMB power spectra and likelihoods. Astronomy and Astrophysics, 641,A5. Doi :https://doi.org/10.1051/0004-6361/201936386