Dark Energy Survey Year 3 results: cosmology with moments of weak lensing mass maps – validation on simulations

Journal Article · Fri Aug 07 00:00:00 EDT 2020 · Monthly Notices of the Royal Astronomical Society

DOI:https://doi.org/10.1093/mnras/staa2680· OSTI ID:1668095

Gatti, M. ^[1]; Chang, C.  ^[2]; Friedrich, O. ^[3]; Jain, B. ^[4]; Bacon, D. ^[5]; Crocce, M.  ^[6]; DeRose, J. ^[7]; Ferrero, I. ^[8]; Fosalba, P. ^[6]; Gaztanaga, E.  ^[6]; Gruen, D.  ^[9]; Harrison, I.  ^[10]; Jeffrey, N.  ^[11]; MacCrann, N.  ^[12]; McClintock, T.  ^[13]; Secco, L. ^[4]; Whiteway, L. ^[11]; Abbott, T. M. C. ^[14]; Allam, S. ^[15]; Annis, J. ^[15] ; Avila, S.  ^[16]; Brooks, D. ^[11]; Buckley-Geer, E.  ^[15]; Burke, D. L. ^[17]; Carnero Rosell, A.  ^[18]; Carrasco Kind, M.  ^[19]; Carretero, J. ^[1]; Cawthon, R. ^[20]; da Costa, L. N. ^[21]; De Vicente, J.  ^[22]; Desai, S. ^[23]; Diehl, H. T. ^[15]; Doel, P. ^[11]; Eifler, T. F.  ^[24]; Estrada, J. ^[15]; Everett, S. ^[25]; Evrard, A. E.  ^[26]; Frieman, J. ^[27]; García-Bellido, J. ^[16]; Gerdes, D. W. ^[26]; Gruendl, R. A. ^[19]; Gschwend, J. ^[21]; Gutierrez, G. ^[15]; James, D. J. ^[25]; Johnson, M. D. ^[28]; Krause, E. ^[29]; Kuehn, K. ^[30]; Lima, M. ^[31]; Maia, M. A. G. ^[21]; March, M.  ^[4]; Marshall, J. L. ^[32]; Melchior, P.  ^[33]; Menanteau, F. ^[19]; Miquel, R. ^[34]; Palmese, A.  ^[27]; Paz-Chinchón, F. ^[19]; Plazas, A. A.  ^[33]; Sánchez, C.  ^[4]; Sanchez, E. ^[22]; Scarpine, V. ^[15]; Schubnell, M. ^[35]; Santiago, S. ^[6]; Sevilla-Noarbe, I. ^[22]; Smith, M.  ^[36]; Soares-Santos, M.  ^[37]; Suchyta, E.  ^[38]; Swanson, M. E. C. ^[28]; Tarle, G. ^[35]; Thomas, D.  ^[5]; Troxel, M. A.  ^[39]; Zuntz, J.  ^[40]

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1. Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra, Spain
2. Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637, USA, Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
3. Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
4. Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA
5. Institute of Cosmology and Gravitation, University of Portsmouth, Portsmouth PO1 3FX, UK
6. Institut d’Estudis Espacials de Catalunya (IEEC), E-08034 Barcelona, Spain, Institute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, Spain
7. Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA, Kavli Institute for Particle Astrophysics & Cosmology, Stanford University, PO Box 2450, Stanford, CA 94305, USA
8. Institute of Theoretical Astrophysics, University of Oslo, PO Box 1029 Blindern, NO-0315 Oslo, Norway
9. Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA, Kavli Institute for Particle Astrophysics & Cosmology, Stanford University, PO Box 2450, Stanford, CA 94305, USA, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
10. Jodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, UK
11. Department of Physics & Astronomy, University College London, Gower Street, London WC1E 6BT, UK
12. Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USA, Department of Physics, The Ohio State University, Columbus, OH 43210, USA
13. Department of Physics, University of Arizona, Tucson, AZ 85721, USA
14. Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile
15. Fermi National Accelerator Laboratory, PO Box 500, Batavia, IL 60510, USA
16. Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, Spain
17. Kavli Institute for Particle Astrophysics & Cosmology, Stanford University, PO Box 2450, Stanford, CA 94305, USA, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
18. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain, Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro 20921-400, Brazil
19. Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 W. Green Street, Urbana, IL 61801, USA, National Center for Supercomputing Applications, 1205 West Clark St, Urbana, IL 61801, USA
20. Physics Department, University of Wisconsin-Madison, 2320 Chamberlin Hall, 1150 University Avenue Madison, WI 53706-1390, USA
21. Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro 20921-400, Brazil, Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro 20921-400, Brazil
22. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
23. Department of Physics, IIT Hyderabad, Kandi, Telangana 502285, India
24. Department of Astronomy/Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA, Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA
25. Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA
26. Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA, Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
27. Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA, Fermi National Accelerator Laboratory, PO Box 500, Batavia, IL 60510, USA
28. National Center for Supercomputing Applications, 1205 West Clark St, Urbana, IL 61801, USA
29. Department of Astronomy/Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA
30. Australian Astronomical Optics, Macquarie University, North Ryde, NSW 2113, Australia, Lowell Observatory, 1400 Mars Hill Rd, Flagstaff, AZ 86001, USA
31. Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro 20921-400, Brazil, Departamento de Física Matemática, Instituto de Física, Universidade de São Paulo, CP 66318, São Paulo, SP 05314-970, Brazil
32. 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
33. Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA
34. Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra, Spain, Institució Catalana de Recerca i Estudis Avançats, E-08010 Barcelona, Spain
35. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
36. School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK
37. Physics Department, Brandeis University, 415 South Street, Waltham MA, USA
38. Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
39. Department of Physics, Duke University Durham, NC 27708, USA
40. Institute for Astronomy, University of Edinburgh, Edinburgh EH9 3HJ, UK

We present a simulated cosmology analysis using the second and third moments of the weak lensing mass (convergence) maps. The second moment, or variances, of the convergence as a function of smoothing scale contains information similar to standard shear two-point statistics. The third moment, or the skewness, contains additional non-Gaussian information. The analysis is geared towards the third year (Y3) data from the Dark Energy Survey (DES), but the methodology can be applied to other weak lensing data sets. We present the formalism for obtaining the convergence maps from the measured shear and for obtaining the second and third moments of these maps given partial sky coverage. We estimate the covariance matrix from a large suite of numerical simulations. We test our pipeline through a simulated likelihood analyses varying 5 cosmological parameters and 10 nuisance parameters and identify the scales where systematic or modelling uncertainties are not expected to affect the cosmological analysis. Our simulated likelihood analysis shows that the combination of second and third moments provides a 1.5 percent constraint on S8 ≡ σ8(Ωm/0.3)0.5 for DES Year 3 data. This is 20 percent better than an analysis using a simulated DES Y3 shear two-point statistics, owing to the non-Gaussian information captured by the inclusion of higher order statistics. This paper validates our methodology for constraining cosmology with DES Year 3 data, which will be presented in a subsequent paper.

• Research Organization: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Michigan, Ann Arbor, MI (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Contributing Organization: DES Collaboration
• Grant/Contract Number: AC02-07CH11359; SC0019193; AC05-00OR22725
• OSTI ID: 1668095
• Alternate ID(s): OSTI ID: 1581420; OSTI ID: 1690176; OSTI ID: 1817446
• Report Number(s): FERMILAB-PUB-19-576-A-AD-AE-SCD; arXiv:1911.05568
• Journal Information: Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Vol. 498 Journal Issue: 3; ISSN 0035-8711
• Publisher: Royal Astronomical Society
• Country of Publication: United Kingdom
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
cosmology: observations
large-scale structure of Universe
gravitational lensing: weak