The Atacama Cosmology Telescope: DR4 maps and cosmological parameters

S, Aiola,; E, Calabrese,; L, Maurin,; S, Naess,; BL, Schmitt,; MH, Abitbol,; GE, Addison,; PAR, Ade,; D, Alonso,; M, Amiri,; S, Amodeo,; E, Angile,; JE, Austermann,; Baildon, Taylor; N, Battaglia,; JA, Beall,; R, Bean,; DT, Becker,; J, Richard Bond,; SM, Bruno,; V, Calafut,; LE, Campusano,; F, Carrero,; GE, Chesmore,; HM, Cho,; SK, Choi,; SE, Clark,; NF, Cothard,; D, Crichton,; KT, Crowley,; O, Darwish,; R, Datta,; EV, Denison,; MJ, Devlin,; CJ, Duell,; SM, Duff,; AJ, Duivenvoorden,; J, Dunkley,; R, Dünner,; T, Essinger-Hileman,; M, Fankhanel,; S, Ferraro,; AE, Fox,; B, Fuzia,; PA, Gallardo,; V, Gluscevic,; JE, Golec,; E, Grace,; M, Gralla,; Guan, Yilun; K, Hall,; M, Halpern,; D, Han,; P, Hargrave,; M, Hasselfield,; JM, Helton,; S, Henderson,; B, Hensley,; J, Colin Hill,; GC, Hilton,; M, Hilton,; AD, Hincks,; R, Hložek,; SPP, Ho,; J, Hubmayr,; KM, Huffenberger,; JP, Hughes,; L, Infante,; K, Irwin,; R, Jackson,; J, Klein,; K, Knowles,; B, Koopman,; A, Kosowsky,; V, Lakey,; D, Li,; Y, Li,; Z, Li,; M, Lokken,; T, Louis,; M, Lungu,; A, MacInnis,; M, Madhavacheril,; F, Maldonado,; M, Mallaby-Kay,; D, Marsden,; J, McMahon,; F, Menanteau,; K, Moodley,; T, Morton,; T, Namikawa,; F, Nati,; L, Newburgh,; JP, Nibarger,; A, Nicola,; MD, Niemack,; MR, Nolta,; J, Orlowski-Sherer,; LA, Page,; CG, Pappas,

articleJan 1, 2020Closed access

The Atacama Cosmology Telescope: DR4 maps and cosmological parameters

ASAiola, SCECalabrese, EMLMaurin, LNSNaess, SSBSchmitt, BL

Princeton University · Flatiron Health (United States) · +28 more institutions

Abstract

We present new arcminute-resolution maps of the Cosmic Microwave Background temperature and polarization anisotropy from the Atacama Cosmology Telescope, using data taken from 2013&ndash;2016 at 98 and 150 GHz. The maps cover more than 17,000 deg2, the deepest 600 deg2&nbsp;with noise levels below&nbsp;10&mu;K-arcmin. We use the power spectrum derived from almost 6,000 deg2&nbsp;of these maps to constrain cosmology. The ACT data enable a measurement of the angular scale of features in both the divergence-like polarization and the temperature anisotropy, tracing both the velocity and density at last-scattering.…

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AS
Aiola, SCorresponding
Princeton University, Flatiron Health (United States)
CE
Calabrese, E
Cardiff University, University of Wales
ML
Maurin, L
Centre National de la Recherche Scientifique, Pontificia Universidad Católica de Chile, Université Paris-Saclay, Institut d'Astrophysique Spatiale
NS
Naess, S
Flatiron Health (United States)
SB
Schmitt, BL
University of Pennsylvania

Topics & keywords

Topics

Keywords

Physics
CMB cold spot
Cosmic microwave background
Astrophysics
Planck
Cosmology
Spectral index
Observational cosmology

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