Planck 2018 results. I. Overview and the cosmological legacy of Planck
Planck Collaboration: Y. Akrami, F. Arroja, M. Ashdown, J. Aumont, C., Baccigalupi, M. Ballardini, A. J. Banday, R. B. Barreiro, N. Bartolo, S., Basak, R. Battye, K. Benabed, J.-P. Bernard, M. Bersanelli, P. Bielewicz, J., J. Bock, J. R. Bond, J. Borrill, F. R. Bouchet

TL;DR
The Planck 2018 results provide the most precise constraints to date on the standard cosmological model, confirming its robustness and offering insights into the early Universe and large-scale structure.
Contribution
This paper presents the comprehensive cosmological analysis of the 2018 Planck data, refining parameters of the LCDM model and summarizing the mission's scientific legacy.
Findings
LCDM model fits the data with high precision
Five of six cosmological parameters measured to better than 1%
Planck data constrains early Universe and large-scale structure models
Abstract
The European Space Agency's Planck satellite, which was dedicated to studying the early Universe and its subsequent evolution, was launched on 14 May 2009. It scanned the microwave and submillimetre sky continuously between 12 August 2009 and 23 October 2013, producing deep, high-resolution, all-sky maps in nine frequency bands from 30 to 857GHz. This paper presents the cosmological legacy of Planck, which currently provides our strongest constraints on the parameters of the standard cosmological model and some of the tightest limits available on deviations from that model. The 6-parameter LCDM model continues to provide an excellent fit to the cosmic microwave background data at high and low redshift, describing the cosmological information in over a billion map pixels with just six parameters. With 18 peaks in the temperature and polarization angular power spectra constrained well,…
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