Year: 2026
Type: conference-paper
Abstract: In March 2025, the Atacama Cosmology Telescope (ACT) released its last cosmological analysis, along with a new cosmic microwave background (CMB) dataset. The sixth data release (DR6), including data collected from 2017 to 2022, covers 40% of the sky at arcminute resolution providing the most precise maps of CMB temperature and polarization over a large sky area. Here I give an overview of the ACT DR6 analysis and describe its constraints on fundamental assumptions of the standard cosmological model and extensions to it, including constraints on particle physics.
DOI: 10.22323/1.485.0094
Author: Adrien La Posta
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funders: National Science Foundation, U.S. Department of Energy, National Aeronautics and Space Administration, Princeton University, University of Pennsylvania, Compute Canada, Government of Ontario, National Energy Research Scientific Computing Center, University of Toronto, Agencia Nacional de Investigación y Desarrollo, National Institute of Standards and Technology, Office of Science, Lawrence Berkeley National Laboratory
Awards: G1079818582, G1143651532, G122673668, G1286236842, G1632040200, G1677143136, G1863003419, BROAD BANDWIDTH METAMATERIAL ANTIREFLECTION COATINGS FOR MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND WE PROPOSE TO DEVELOP BROAD-BAND METAMATERIAL, THIS PROPOSAL SEEKS SUPPORT FOR THE DEVELOPMENT OF MILLIMETER-WAVELENGTH MULTICHROIC POLARIMETERS OPTIMIZED FOR DETECTING COSMIC MICROWAVE BACKGROUND, G3083819904, Gravitational Physics from the Cosmic Microwave Background, G419881185, Gravitational Physics from the Cosmic Microwave Background, G42916606, G4361631179, G4501827968, G498139845, G5076365615, Collaborative Research with the Atacama Cosmology Telescope (ACT): Probing Fundamental Physics Through Observations of Cosmic Structure, Advanced ACTPol, G6652958823, Gravitational Physics from the Cosmic Microwave Background, G701298221, G7354628648, ACTPol: The Atacama Cosmology Telescope with Polarization, G969889393
OpenAlex ID: W7128027449
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