The Atacama Cosmology Telescope: DR6 Gravitational Lensing Map and Cosmological Parameters

Abstract We present cosmological constraints from a gravitational lensing mass map covering 9400 deg 2 reconstructed from measurements of the cosmic microwave background (CMB) made by the Atacama Cosmology Telescope (ACT) from 2017 to 2021. In combination with measurements of baryon acoustic oscillations and big bang nucleosynthesis, we obtain the clustering amplitude σ 8 = 0.819 ± 0.015 at 1.8% precision, S 8 ≡ σ 8 ( Ω m / 0.3 ) 0.5 = 0.840 ± 0.028 , and the Hubble constant H 0 = (68.3 ± 1.1) km s −1 Mpc −1 at 1.6% precision. A joint constraint with Planck CMB lensing yields σ 8 = 0.812 ± 0.013, S 8 ≡ σ 8 ( Ω m / 0.3 ) 0.5 = 0.831 ± 0.023 , and H 0 =…

• NS
  National Science Foundation

  Awards: AST-1440226, AST-2108536, 2108536, AST-1907657, 1214379, 2039656, PHY-0855887, 0355328, 21-ATP21-0145, 1907657, 0408698, FB210003, AST-0408698, PHY-1214379, 0855887, DE-AC02-05CH11231, 2108126, 0965625, AST-2108126, AST-0965625
• UD
  U.S. Department of Energy

  Awards: -AC02-05CH11231, DE-SC00233966, 05CH11231, AC02-05CH11231, DE-AC02, DE-AC02-05CH11231, DE-AC02-
• NA
  National Aeronautics and Space Administration

  Awards: 22-ADAP22-0149, DE-AC02-05CH11231, FB210003, NNX14AB58G, NNX13AE56G, 21-ATP21-0145, 22-ADAP22-0150, 22-ADAP22-0145, 21-ATP21-0129
• AP
  Alfred P. Sloan Foundation

  Award: DE-AC02-05CH11231
• PU
  Princeton University
• UO
  University of Pennsylvania
• CC
  Compute Canada
• GO
  Government of Ontario
• NE
  National Energy Research Scientific Computing Center

  Awards: 05CH11231, HEP-ERCAPmp107, AC02-05CH11231
• GO
  Government of Canada
• EC
  European Commission

  Awards: DE-AC02-05CH11231, 849169, 851274
• NR
  National Research Foundation

  Award: 137975
• MO
  Ministry of Education, Culture, Sports, Science and Technology

  Award: DE-AC02-05CH11231
• SN
  Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung

  Award: 186879
• IC
  Industry Canada
• UO
  University of Toronto
• AN
  Agencia Nacional de Investigación y Desarrollo

  Awards: 11191125, FB210003
• IP
  Institut Périmètre de physique théorique
• MO
  Ministry of Colleges and Universities
• NI
  National Institute of Standards and Technology

  Award: DE-AC02-05CH11231
• OO
  Office of Science

  Awards: AC02-05CH11231, -AC02-05CH11231, DE-AC02
• SA
  Science and Technology Facilities Council

  Awards: ST/N000927/1, ST/S000623/1, ST/N000927/1, ST/W000830/1, ST/S000623/1, ST/X006387/1, ST/X006387/1
• JS
  Japan Society for the Promotion of Science

  Awards: JP22K03682, JP20H05859
• LB
  Lawrence Berkeley National Laboratory

  Awards: DE-AC02-05CH11231, 05CH11231, AC02-05CH11231