Dark Energy Survey Year 3 results: Curved-sky weak lensing mass map reconstruction

Author:

Jeffrey N12ORCID,Gatti M34,Chang C56,Whiteway L2,Demirbozan U3,Kovacs A78,Pollina G9,Bacon D10,Hamaus N9,Kacprzak T11,Lahav O2,Lanusse F12,Mawdsley B10,Nadathur S10,Starck J L12,Vielzeuf P3,Zeurcher D11,Alarcon A13,Amon A14,Bechtol K15,Bernstein G M4,Campos A16,Rosell A Carnero171819,Kind M Carrasco2021,Cawthon R15,Chen R22,Choi A23,Cordero J24,Davis C14,DeRose J2526,Doux C4,Drlica-Wagner A5627,Eckert K4,Elsner F2,Elvin-Poole J2328,Everett S26,Ferté A29,Giannini G3,Gruen D143031,Gruendl R A2021,Harrison I2432,Hartley W G33,Herner K27,Huff E M29,Huterer D34,Kuropatkin N27,Jarvis M4,Leget P F14,MacCrann N35,McCullough J14,Muir J14,Myles J143031,Navarro-Alsina A36,Pandey S4,Prat J5,Raveri M6,Rollins R P24,Ross A J23,Rykoff E S1431,Sánchez C4,Secco L F4,Sevilla-Noarbe I37,Sheldon E38,Shin T4,Troxel M A22,Tutusaus I3940,Varga T N941,Yanny B27,Yin B16,Zhang Y27,Zuntz J42,Abbott T M C43,Aguena M1844,Allam S27,Andrade-Oliveira F1845,Becker M R13,Bertin E4647,Bhargava S48,Brooks D2,Burke D L1431,Carretero J3,Castander F J3940,Conselice C2449,Costanzi M505152,Crocce M3940,da Costa L N1853,Pereira M E S34,De Vicente J37,Desai S54,Diehl H T27,Dietrich J P55,Doel P2,Ferrero I56,Flaugher B27,Fosalba P3940,García-Bellido J57,Gaztanaga E3940,Gerdes D W3458,Giannantonio T5960,Gschwend J1853,Gutierrez G27,Hinton S R61,Hollowood D L26,Hoyle B94155,Jain B4,James D J62,Lima M1844,Maia M A G1853,March M4,Marshall J L63,Melchior P64,Menanteau F2021,Miquel R365,Mohr J J4155,Morgan R15,Ogando R L C1853,Palmese A627,Paz-Chinchón F2059,Plazas A A64,Rodriguez-Monroy M37,Roodman A1431,Sanchez E37,Scarpine V27,Serrano S3940,Smith M66,Soares-Santos M34,Suchyta E67,Tarle G34,Thomas D10,To C143031,Weller J941,

Affiliation:

1. Laboratoire de Physique de l’Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, Paris 75005, France

2. Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK

3. Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona), Spain

4. Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA

5. Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637, USA

6. Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA

7. Instituto de Astrofísica de Canarias (IAC), Calle Vía Láctea, E-38200 La Laguna, Tenerife, Spain

8. Departamento de Astrofísica, Universidad de La Laguna (ULL), E-38206 La Laguna, Tenerife, Spain

9. Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians Universität München, Scheinerstr. 1, D-81679 München, Germany

10. Institute of Cosmology and Gravitation, University of Portsmouth, Portsmouth PO1 3FX, UK

11. Department of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 16, CH-8093 Zurich, Switzerland

12. AIM, CEA, CNRS, Université Paris-Saclay, Université de Paris, F-91191 Gif-sur-Yvette, France

13. Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439, USA

14. Kavli Institute for Particle Astrophysics and Cosmology, P. O. Box 2450, Stanford University, Stanford, CA 94305, USA

15. Physics Department, 2320 Chamberlin Hall, University of Wisconsin-Madison, 1150 University Avenue Madison, WI 53706-1390, USA

16. Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15312, USA

17. Instituto de Astrofisica de Canarias, E-38205 La Laguna, Tenerife, Spain

18. Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, Brazil

19. Universidad de La Laguna, Dpto. Astrofísica, E-38206 La Laguna, Tenerife, Spain

20. Center for Astrophysical Surveys, National Center for Supercomputing Applications, 1205 West Clark St., Urbana, IL 61801, USA

21. Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 W. Green Street, Urbana, IL 61801, USA

22. Department of Physics, Duke University Durham, NC 27708, USA

23. Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USA

24. Jodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, UK

25. Department of Astronomy, University of California, Berkeley, 501 Campbell Hall, Berkeley, CA 94720, USA

26. Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA

27. Fermi National Accelerator Laboratory, PO Box 500, Batavia, IL 60510, USA

28. Department of Physics, The Ohio State University, Columbus, OH 43210, USA

29. Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA

30. Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA

31. SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA

32. Department of Physics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK

33. Department of Astronomy, University of Geneva, ch. d’Écogia 16, CH-1290 Versoix, Switzerland

34. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA

35. Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge CB3 0WA, UK

36. Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas, SP 13083-859, Brazil

37. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid 28040, Spain

38. Brookhaven National Laboratory, Bldg 510, Upton, NY 11973, USA

39. Institut d’Estudis Espacials de Catalunya (IEEC), E-08034 Barcelona, Spain

40. Institute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, Spain

41. Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, Germany

42. Institute for Astronomy, University of Edinburgh, Edinburgh EH9 3HJ, UK

43. Cerro Tololo Inter-American Observatory, NSF’s National Optical-Infrared Astronomy Research Laboratory, Casilla 603, La Serena, Chile

44. Departamento de Física Matemática, Instituto de Física, Universidade de São Paulo, CP 66318, São Paulo, SP 05314-970, Brazil

45. Instituto de Física Teórica, Universidade Estadual Paulista, São Paulo, Brazil

46. CNRS, UMR 7095, Institut d’Astrophysique de Paris, F-75014 Paris, France

47. Sorbonne Universités, UPMC Univ Paris 06, UMR 7095, Institut d’Astrophysique de Paris, F-75014 Paris, France

48. Department of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton BN1 9QH, UK

49. University of Nottingham, School of Physics and Astronomy, Nottingham NG7 2RD, UK

50. Astronomy Unit, Department of Physics, University of Trieste, via Tiepolo 11, I-34131 Trieste, Italy

51. INAF-Osservatorio Astronomico di Trieste, via G. B. Tiepolo 11, I-34143 Trieste, Italy

52. Institute for Fundamental Physics of the Universe, Via Beirut 2, I-4014 Trieste, Italy

53. Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, Brazil

54. Department of Physics, IIT Hyderabad, Kandi, Telangana 502285, India

55. Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr. 1, D-81679 Munich, Germany

56. Institute of Theoretical Astrophysics, University of Oslo. P.O. Box 1029 Blindern, NO-0315 Oslo, Norway

57. Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, Spain

58. Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA

59. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK

60. Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK

61. School of Mathematics and Physics, University of Queensland, Brisbane, QLD 4072, Australia

62. Center for Astrophysics | Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA

63. George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, and Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USA

64. Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA

65. Institució Catalana de Recerca i Estudis Avançats, E-08010 Barcelona, Spain

66. School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK

67. Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

Abstract

ABSTRACT We present reconstructed convergence maps, mass maps, from the Dark Energy Survey (DES) third year (Y3) weak gravitational lensing data set. The mass maps are weighted projections of the density field (primarily dark matter) in the foreground of the observed galaxies. We use four reconstruction methods, each is a maximum a posteriori estimate with a different model for the prior probability of the map: Kaiser–Squires, null B-mode prior, Gaussian prior, and a sparsity prior. All methods are implemented on the celestial sphere to accommodate the large sky coverage of the DES Y3 data. We compare the methods using realistic ΛCDM simulations with mock data that are closely matched to the DES Y3 data. We quantify the performance of the methods at the map level and then apply the reconstruction methods to the DES Y3 data, performing tests for systematic error effects. The maps are compared with optical foreground cosmic-web structures and are used to evaluate the lensing signal from cosmic-void profiles. The recovered dark matter map covers the largest sky fraction of any galaxy weak lensing map to date.

Funder

U.S. Department of Energy

National Science Foundation

Science and Technology Facilities Council

Higher Education Funding Council for England

University of Illinois at Urbana-Champaign

University of Chicago

Ohio State University

Ministério da Ciência, Tecnologia e Inovação

University of Cambridge

University College London

University of Edinburgh

Lawrence Berkeley National Laboratory

University of Nottingham

Ohio State University Press

University of Pennsylvania

University of Portsmouth

SLAC National Accelerator Laboratory

Stanford University

University of Sussex

Texas A&M University

MICINN

European Union

Generalitat de Catalunya

European Research Council

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

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