Atacama Cosmology Telescope: Component-separated maps of CMB temperature and the thermal Sunyaev-Zel’dovich effect
Mathew S. MadhavacherilCentre for the Universe, Perimeter Institute for Theoretical Physics, Waterloo, Ontario, Canada N2L 2Y5J. Colin HillCenter for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USASigurd NæssCenter for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USAGraeme E. AddisonDepartment of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USASimone AiolaCenter for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USATaylor BaildonDepartment of Physics, University of Michigan, Ann Arbor, Michigan 48103, USANicholas BattagliaDepartment of Astronomy, Cornell University, Ithaca, New York 14853, USARachel BeanDepartment of Astronomy, Cornell University, Ithaca, New York 14853, USAJ. Richard BondCanadian Institute for Theoretical Astrophysics, University of Toronto, 60 St. George St., Toronto, Ontario M5S 3H8, CanadaErminia CalabreseSchool of Physics and Astronomy, Cardiff University, The Parade, Cardiff, CF24 3AA, United KingdomVictoria CalafutDepartment of Astronomy, Cornell University, Ithaca, New York 14853, USASteve K. ChoiDepartment of Astronomy, Cornell University, Ithaca, New York 14853, USAOmar DarwishDepartment of Applied Mathematics and Theoretical Physics, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, United KingdomRahul DattaDepartment of Physics, University of Michigan, Ann Arbor, Michigan 48103, USAMark J. DevlinDepartment of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104, USAJoanna DunkleyDepartment of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, New Jersey 08544, USARolando DünnerInstituto de Astrofísica and Centro de Astro-Ingeniería, Facultad de Física, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago, ChileS. FerraroPhysics Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USAPatricio A. GallardoDepartment of Physics, Cornell University, 109 Clark Hall, Ithaca, New York 14853, USAVera GluscevicDepartment of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484, USAMark HalpernDepartment of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1Dongwon HanCenter for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USAMatthew HasselfieldCenter for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USAMatt HiltonAstrophysics & Cosmology Research Unit, School of Mathematics, Statistics & Computer Science, University of KwaZulu-Natal, Westville Campus, Durban 4041, South AfricaAdam D. HincksCanadian Institute for Theoretical Astrophysics, University of Toronto, 60 St. George St., Toronto, Ontario M5S 3H8, CanadaRenée HložekDepartment of Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, Ontario M5S 3H4, CanadaShuay-Pwu Patty HoJoseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, New Jersey 08544, USAK. M. HuffenbergerDepartment of Physics, Florida State University, Tallahassee, Florida 32306, USAJohn P. HughesDepartment of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, New Jersey 08854-8019 USABrian J. KoopmanDepartment of Physics, Yale University, New Haven, Connecticut 06520Arthur KosowskyDepartment of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USAMartine LokkenCanadian Institute for Theoretical Astrophysics, University of Toronto, 60 St. George St., Toronto, Ontario M5S 3H8, CanadaThibaut LouisLaboratoire de l’Accélérateur Linéaire, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay, FranceMarius LunguJoseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, New Jersey 08544, USAAmanda MacInnisPhysics and Astronomy Department, Stony Brook University, Stony Brook, New York 11794, USAL. MaurinInstitut d’Astrophysique Spatiale, CNRS, Univ. Paris-Sud, Université Paris-Saclay, F-91400 Orsay, FranceJeffrey J. McMahonDepartment of Physics, University of Michigan, Ann Arbor, Michigan 48103, USAKavilan MoodleyAstrophysics & Cosmology Research Unit, School of Mathematics, Statistics & Computer Science, University of KwaZulu-Natal, Westville Campus, Durban 4041, South AfricaF. NatiDepartment of Physics, University of Milano–Bicocca, Piazza della Scienza, 3, Milan, Italy, 20126Michael D. NiemackDepartment of Astronomy, Cornell University, Ithaca, New York 14853, USALyman A. PageJoseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, New Jersey 08544, USABruce PartridgeDepartment of Physics and Astronomy, Haverford College, Haverford, Pennsylvania 19041, USANaomi RobertsonInstitute of Astronomy, Madingley Road, Cambridge CB3 0HA, United KingdomNeelima SehgalCenter for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USAEmmanuel SchaanPhysics Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USAA. SchillaciDepartment of Physics, California Institute of Technology, Pasadena, California 91125, USABlake D. SherwinDepartment of Applied Mathematics and Theoretical Physics, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, United KingdomCristobál SifónInstituto de Física, Pontificia Universidad Católica de Valparaíso, Casilla 4059, Valparaíso, ChileSara M. SimonDepartment of Physics, University of Michigan, Ann Arbor, Michigan 48103, USADavid N. SpergelCenter for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USASuzanne T. StaggsJoseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, New Jersey 08544, USAEmilie R. StorerJoseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, New Jersey 08544, USAAlexander van EngelenSchool of Earth and Space Exploration, Arizona State University, Tempe, Arizona 85287, USAEve M. VavagiakisDepartment of Physics, Cornell University, 109 Clark Hall, Ithaca, New York 14853, USAEdward J. WollackNASA/Goddard Space Flight Center, Greenbelt, Maryland 20771, USAZhilei XuDepartment of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104, USA
2020en
ABI
Аннотация
Optimal analyses of many signals in the cosmic microwave background (CMB) require map-level extraction of individual components in the microwave sky, rather than measurements at the power spectrum level alone. To date, nearly all map-level component separation in CMB analyses has been performed exclusively using satellite data. In this paper, we implement a component separation method based on the internal linear combination (ILC) approach which we have designed to optimally account for the anisotropic noise (in the 2D Fourier domain) often found in ground-based CMB experiments. Using this method, we combine multifrequency data from the Planck satellite and the Atacama Cosmology Telescope Polarimeter (ACTPol) to construct the first wide-area ($\ensuremath{\approx}2100\text{ }\text{ }\mathrm{sq}.\text{ }\mathrm{deg}.$), arcminute-resolution component-separated maps of the CMB temperature anisotropy and the thermal Sunyaev-Zel'dovich (tSZ) effect sourced by the inverse-Compton scattering of CMB photons off hot, ionized gas. Our ILC pipeline allows for explicit deprojection of various contaminating signals, including a modified blackbody approximation of the cosmic infrared background (CIB) spectral energy distribution. The cleaned CMB maps will be a useful resource for CMB lensing reconstruction, kinematic SZ cross-correlations, and primordial non-Gaussianity studies. The tSZ maps will be used to study the pressure profiles of galaxies, groups, and clusters through cross-correlations with halo catalogs, with dust contamination controlled via CIB deprojection. The data products described in this paper are available on LAMBDA.
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