Planck 2018 results. V. CMB power spectra and likelihoods
Planck 2018 results. V. CMB power spectra and likelihoods
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) multipoles, implementing several methodological …