The Atacama Cosmology Telescope: a CMB lensing mass map over 2100 square degrees of sky and its cross-correlation with BOSS-CMASS galaxies

Journal Article · Tue Nov 10 00:00:00 EST 2020 · Monthly Notices of the Royal Astronomical Society

DOI:https://doi.org/10.1093/mnras/staa3438· OSTI ID:2205341

Darwish, Omar  ^[1]; Madhavacheril, Mathew S. ^[2]; Sherwin, Blake D. ^[3]; Aiola, Simone ^[4]; Battaglia, Nicholas ^[5]; Beall, James A. ^[6]; Becker, Daniel T. ^[6]; Bond, J. Richard ^[7]; Calabrese, Erminia ^[8]; Choi, Steve K. ^[5]; Devlin, Mark J. ^[9]; Dunkley, Jo ^[10]; Dünner, Rolando ^[11]; Ferraro, Simone ^[12]; Fox, Anna E. ^[6]; Gallardo, Patricio A. ^[13]; Guan, Yilun ^[14]; Halpern, Mark ^[15]; Han, Dongwon ^[16]; Hasselfield, Matthew ^[4] ; Hill, J. Colin ^[17]; Hilton, Gene C. ^[6]; Hilton, Matt ^[18]; Hincks, Adam D. ^[7]; Patty Ho, Shuay-Pwu ^[19]; Hubmayr, J. ^[6]; Hughes, John P. ^[20]; Koopman, Brian J. ^[21]; Kosowsky, Arthur ^[14]; Van Lanen, J. ^[6]; Louis, Thibaut ^[22]; Lungu, Marius ^[19]; MacInnis, Amanda ^[16]; Maurin, Loïc ^[23]; McMahon, Jeffrey ^[24]; Moodley, Kavilan ^[18]; Naess, Sigurd ^[4]; Namikawa, Toshiya ^[1]; Nati, Federico ^[25]; Newburgh, Laura ^[21]; Nibarger, John P. ^[6]; Niemack, Michael D. ^[26]; Page, Lyman A. ^[19]; Partridge, Bruce ^[27]; Qu, Frank J. ^[1]; Robertson, Naomi ^[28]; Schillaci, Alessandro ^[29]; Schmitt, Benjamin ^[30]; Sehgal, Neelima ^[16]; Sifón, Cristóbal ^[31]; Spergel, David N. ^[32]; Staggs, Suzanne ^[19]; Storer, Emilie ^[19]; van Engelen, Alexander ^[33]; Wollack, Edward J. ^[34]

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1. Center for Theoretical Cosmology, DAMTP, University of Cambridge, Cambridge CB3 0WA, UK
2. Perimeter Institute, Centre for the Universe, Waterloo, ON N2L 2Y5, Canada;Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544, USA
3. Center for Theoretical Cosmology, DAMTP, University of Cambridge, Cambridge CB3 0WA, UK;Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge CB3 OHA, UK
4. Center for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, NY 10010, USA
5. Department of Astronomy, Cornell University, Ithaca, NY 14853 USA
6. NIST Quantum Devices Group, 325 Broadway Mailcode 817.03, Boulder, CO 80305, USA
7. Canadian Institute for Theoretical Astrophysics, University of Toronto, 60 St George Street, Toronto, ON M5S 3H8, Canada
8. School of Physics and Astronomy, Cardiff University, The Parade, Cardiff CF24 3AA, UK
9. Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104, USA
10. Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544, USA;Joseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, NJ 08544, USA
11. Instituto de Astrofísica and Centro de Astro-Ingeniería, Facultad de Física, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 7820436 Macul, Chile
12. Physics Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
13. Department of Physics, Cornell University, Ithaca, NY 14853 USA
14. Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, USA
15. Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
16. Physics and Astronomy Department, Stony Brook University, Stony Brook, NY 11794, USA
17. Center for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, NY 10010, USA;Department of Physics, Columbia University, 550 West 120th Street, New York, NY 10027, USA;School of Natural Sciences, Institute for Advanced Study, Princeton, NJ 08540, USA
18. Astrophysics & Cosmology Research Unit, School of Mathematics, Statistics & Computer Science, University of KwaZulu-Natal, Westville Campus, Durban 4041, South Africa
19. Joseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, NJ 08544, USA
20. Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, NJ 08854-8019 USA
21. Department of Physics, Yale University, New Haven, CT 06520, USA
22. CNRS/IN2P3, IJCLab, Université Paris-Saclay, F-91405 Orsay, France
23. CNRS, Institut d’astrophysique spatiale, Université Paris-Saclay, F-91405 Orsay, France
24. Kavli Institute for Cosmological Physics, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637, USA;Department of Astronomy and Astrophysics, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637, USA;Department of Physics, University of Chicago, Chicago, IL 60637, USA;Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA
25. Department of Physics, University of Milano-Bicocca Piazza della Scienza 3, I-20126 Milano, Italy
26. Department of Astronomy, Cornell University, Ithaca, NY 14853 USA;Department of Physics, Cornell University, Ithaca, NY 14853 USA
27. Department of Physics and Astronomy, Haverford College, Haverford, PA 19041, USA
28. Institute of Astronomy, Madingley Road, Cambridge CB3 0HA, UK;Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge CB3 OHA, UK
29. Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
30. Harvard-Smithsonian Center for Astrophysics, Harvard University, 60 Garden St, Cambridge, MA 02138, USA
31. Instituto de Física, Pontificia Universidad Católica de Valparaíso, Casilla 4059, Valparaíso, Chile
32. Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544, USA;Center for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, NY 10010, USA
33. School of Earth and Space Exploration and Department of Physics, Arizona State University, Tempe, AZ 85287, USA
34. NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA

In this work, we construct cosmic microwave background lensing mass maps using data from the 2014 and 2015 seasons of observations with the Atacama Cosmology Telescope (ACT). These maps cover 2100 square degrees of sky and overlap with a wide variety of optical surveys. The maps are signal dominated on large scales and have fidelity such that their correlation with the cosmic infrared background is clearly visible by eye. We also create lensing maps with thermal Sunyaev-Zel’dovich contamination removed using a novel cleaning procedure that only slightly degrades the lensing signal-to-noise ratio. The cross-spectrum between the cleaned lensing map and the BOSS CMASS galaxy sample is detected at 10σ significance, with an amplitude of A = 1.02 ± 0.10 relative to the Planck best-fitting Lambda cold dark matter cosmological model with fiducial linear galaxy bias. Our measurement lays the foundation for lensing cross-correlation science with current ACT data and beyond.

• Research Organization: Stony Brook Univ., NY (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF)
• Contributing Organization: ACT Collaboration
• Grant/Contract Number: SC0020441; AC02-05CH11231; AST-1440226; AST0965625; AST-0408698; PHY-1214379; PHY-0855887; NNX13AE56G; NNX14AB58G
• OSTI ID: 2205341
• Alternate ID(s): OSTI ID: 1762204
• Journal Information: Monthly Notices of the Royal Astronomical Society, Vol. 500, Issue 2; ISSN 0035-8711
• Publisher: Oxford University Press
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
weak gravitational lensing
cosmic background radiation
large-scale structure of universe
cosmology