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Atacama Cosmology Telescope: High-resolution component-separated maps across one third of the sky

William R. CoultonCenter for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USAMathew S. MadhavacherilDepartment of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104, USAAdriaan J. DuivenvoordenCenter for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USAJ. Colin HillCenter for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USAIrene Abril-CabezasDAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 OWA, United KingdomPeter A. R. AdeSchool of Physics and Astronomy, Cardiff University, The Parade, Cardiff, Wales CF24 3AA, United KingdomSimone AiolaCenter for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USATommy AlfordDepartment of Physics, University of Chicago, Chicago, Illinois 60637, USAM. AmiriDepartment of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4Stefania AmodeoUniversité de Strasbourg, CNRS, Observatoire astronomique de Strasbourg, UMR 7550, F-67000 Strasbourg, FranceRui AnDepartment of Physics and Astronomy, University of Southern California, 825 Bloom Walk ACB 439, Los Angeles, California 90089-0484, USAZachary AtkinsJoseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, New Jersey 08544, USAJason E. AustermannNIST Quantum Sensors Group, 325 Broadway Mailcode 817.03, Boulder, Colorado 80305, USANicholas BattagliaDepartment of Astronomy, Cornell University, Ithaca, New York 14853, USAE. S. BattistelliPhysics Department, Sapienza University of Rome Piazzale Aldo Moro 5, 00185 Rome, ItalyJames A. BeallNIST Quantum Sensors Group, 325 Broadway Mailcode 817.03, Boulder, Colorado 80305, USARachel BeanDepartment of Astronomy, Cornell University, Ithaca, New York 14853, USABenjamin BeringueSchool of Physics and Astronomy, Cardiff University, The Parade, Cardiff, Wales CF24 3AA, United KingdomTanay BhandarkarDepartment of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104, USAEmily BiermannDepartment of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USABoris BollietDAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 OWA, United KingdomJ. Richard BondCanadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Ontario, Canada M5S 3H8Hongbo CaiDepartment of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USAErminia CalabreseSchool of Physics and Astronomy, Cardiff University, The Parade, Cardiff, Wales CF24 3AA, United KingdomVictoria CalafutCanadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Ontario, Canada M5S 3H8Valentina CapalboPhysics Department, Sapienza University of Rome Piazzale Aldo Moro 5, 00185 Rome, ItalyFelipe CarreroInstituto de Astrofísica and Centro de Astro-Ingeniería, Facultad de Fìsica, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, 7820436 Macul, Santiago, ChileGrace ChesmoreDepartment of Physics, University of Chicago, Chicago, Illinois 60637, USAHsiao-Mei ChoNIST Quantum Sensors Group, 325 Broadway Mailcode 817.03, Boulder, Colorado 80305, USASteve K. ChoiDepartment of Astronomy, Cornell University, Ithaca, New York 14853, USASusan E. ClarkDepartment of Physics, Stanford University, Stanford, California 94305-4085, USARodrigo Córdova RosadoDepartment of Astrophysical Sciences, Peyton Hall, Princeton University, Princeton, New Jersey 08544, USANicholas F. CothardNASA/Goddard Space Flight Center, Greenbelt, Maryland 20771, USAKevin CoughlinDepartment of Physics, University of Chicago, Chicago, Illinois 60637, USAKevin T. CrowleyDepartment of Physics, University of California, Berkeley, California 94720, USAMark J. DevlinDepartment of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104, USASimon DickerDepartment of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104, USAPeter DozeDepartment of Physics and Astronomy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854-8019, USACody J. DuellDepartment of Physics, Cornell University, Ithaca, New York 14853, USAShannon M. DuffNIST Quantum Sensors Group, 325 Broadway Mailcode 817.03, Boulder, Colorado 80305, USAJo DunkleyDepartment of Astrophysical Sciences, Peyton Hall, Princeton University, Princeton, New Jersey 08544, USARolando DünnerInstituto de Astrofísica and Centro de Astro-Ingeniería, Facultad de Fìsica, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, 7820436 Macul, Santiago, ChileValentina FanfaniDepartment of Physics, University of Milano—Bicocca, Piazza della Scienza, 3–20126, Milano (MI), ItalyMax FankhanelGerrit S. FarrenDAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 OWA, United KingdomS. FerraroDepartment of Physics, University of California, Berkeley, California 94720, USARodrigo FreundtDepartment of Astronomy, Cornell University, Ithaca, New York 14853, USABrittany FuziaDepartment of Physics, Florida State University, Tallahassee, Florida 32306, USAPatricio A. GallardoDepartment of Physics, University of Chicago, Chicago, Illinois 60637, USAX. GarridoUniversité Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, FranceJahmour J. GivansDepartment of Astrophysical Sciences, Peyton Hall, Princeton University, Princeton, New Jersey 08544, USAVera GluscevicDepartment of Physics and Astronomy, University of Southern California, 825 Bloom Walk ACB 439, Los Angeles, California 90089-0484, USAJoseph E. GolecDepartment of Physics, University of Chicago, Chicago, Illinois 60637, USAYilun GuanDunlap Institute for Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, Ontario, Canada M5S 3H4M. HalpernDepartment of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4Dongwon HanDAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 OWA, United KingdomMatthew HasselfieldCenter for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USAErin HealyDepartment of Physics, University of Chicago, Chicago, Illinois 60637, USAShawn HendersonSLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USABrandon S. HensleyDepartment of Astrophysical Sciences, Peyton Hall, Princeton University, Princeton, New Jersey 08544, USACarlos Hervías-CaimapoInstituto de Astrofísica and Centro de Astro-Ingeniería, Facultad de Fìsica, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, 7820436 Macul, Santiago, ChileGene C. HiltonNIST Quantum Sensors Group, 325 Broadway Mailcode 817.03, Boulder, Colorado 80305, USAMatt HiltonAstrophysics Research Centre, School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Durban 4001, South AfricaAdam D. HincksDavid A. Dunlap Department of Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, Ontario, Canada M5S 3H4Renée HložekDavid A. Dunlap Department of Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, Ontario, Canada M5S 3H4Shuay-Pwu Patty HoJoseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, New Jersey 08544, USAZachary B. HuberDepartment of Physics, Cornell University, Ithaca, New York 14853, USAJohannes HubmayrNIST Quantum Sensors Group, 325 Broadway Mailcode 817.03, Boulder, Colorado 80305, USAK. M. HuffenbergerDepartment of Physics, Florida State University, Tallahassee, Florida 32306, USAJohn P. HughesDepartment of Physics and Astronomy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854-8019, USAK. D. IrwinDepartment of Physics, Stanford University, Stanford, California 94305-4085, USAGiovanni IsopiPhysics Department, Sapienza University of Rome Piazzale Aldo Moro 5, 00185 Rome, ItalyHidde T. JenseSchool of Physics and Astronomy, Cardiff University, The Parade, Cardiff, Wales CF24 3AA, United KingdomBen KellerDepartment of Physics, Cornell University, Ithaca, New York 14853, USAJoshua KimDepartment of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104, USAKenda KnowlesAstrophysics Research Centre, School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Durban 4001, South AfricaBrian J. KoopmanDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAArthur KosowskyDepartment of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USADarby KramerSchool of Earth and Space Exploration, Arizona State University, Tempe, Arizona 85287, USAAleksandra KusiakDepartment of Physics, Columbia University, New York, New York, USAAdrien La PostaUniversité Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, FranceVictoria LakeyDepartment of Chemistry and Physics, Lincoln University, Pennsylvania 19352, USAEunseong LeeDepartment of Astronomy, Cornell University, Ithaca, New York 14853, USAZack LiCanadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Ontario, Canada M5S 3H8Yaqiong LiDepartment of Physics, Cornell University, Ithaca, New York 14853, USAM. LimonDepartment of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104, USAMartine LokkenCanadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Ontario, Canada M5S 3H8Thibaut LouisUniversité Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, FranceMarius LunguDepartment of Physics, University of Chicago, Chicago, Illinois 60637, USAN. MacCrannDAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 OWA, United KingdomAmanda MacInnisPhysics and Astronomy Department, Stony Brook University, Stony Brook, New York 11794, USADiego MaldonadoFelipe MaldonadoDepartment of Physics, Florida State University, Tallahassee, Florida 32306, USAMaya Mallaby-KayDepartment of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637, USAGabriela A. MarquesFermi National Accelerator Laboratory, MS209, P.O. Box 500, Batavia, Illinois 60510, USAJoshiwa van MarrewijkEuropean Southern Observatory, Karl-Schwarzschild-Strasse 2, D-85748, Garching, GermanyFiona McCarthyCenter for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USAJ. J. McMahonDepartment of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637, USAYogesh MehtaSchool of Earth and Space Exploration, Arizona State University, Tempe, Arizona 85287, USAF. MenanteauDepartment of Astronomy, University of Illinois at Urbana-Champaign, West Green Street, Urbana, Illinois 61801, USA
2024en
ABI

Abstract

Observations of the millimeter sky contain valuable information on a number of signals, including the blackbody cosmic microwave background (CMB), Galactic emissions, and the Compton-$y$ distortion due to the thermal Sunyaev-Zel'dovich (tSZ) effect. Extracting new insight into cosmological and astrophysical questions often requires combining multiwavelength observations to spectrally isolate one component. In this work, we present a new arc-minute-resolution Compton-$y$ map, which traces out the line-of-sight-integrated electron pressure, as well as maps of the CMB in intensity and E-mode polarization, across a third of the sky (around $13,000\text{ }\text{ }{\mathrm{deg}}^{2}$). We produce these through a joint analysis of data from the Atacama Cosmology Telescope (ACT) data release 4 and 6 at frequencies of roughly 93, 148, and 225 GHz, together with data from the Planck satellite at frequencies between 30 and 545 GHz. We present detailed verification of an internal linear combination pipeline implemented in a needlet frame that allows us to efficiently suppress Galactic contamination and account for spatial variations in the ACT instrument noise. These maps provide a significant advance, in noise levels and resolution, over the existing Planck component-separated maps and will enable a host of science goals including studies of cluster and galaxy astrophysics, inferences of the cosmic velocity field, primordial non-Gaussianity searches, and gravitational lensing reconstruction of the CMB.

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Cited by 20 references