Dark Energy Survey Year 3 results: Cosmology from cosmic shear and robustness to modeling uncertainty

Journal Article · 12 January 2022 · Physical Review. D.

DOI: https://doi.org/10.1103/PhysRevD.105.023515 · OSTI ID:1824145

Secco, L. F. ^[1]; Samuroff, S. ^[2]; Krause, E.  ^[3]; Jain, B. ^[4]; Blazek, J. ^[5]; Raveri, M. ^[4]; Campos, A.  ^[2]; Amon, A. ^[6]; Chen, A. ^[7]; Doux, C. ^[4]; Choi, A. ^[8]; Gruen, D. ^[9]; Bernstein, G. M. ^[4]; Chang, C. ^[10]; DeRose, J. ^[11]; Myles, J. ^[9]; Ferté, A. ^[12]; Lemos, P.  ^[13]; Huterer, D. ^[7]; Prat, J. ^[10] ; Troxel, M. A. ^[14]; MacCrann, N. ^[15]; Liddle, A. R. ^[16]; Kacprzak, T. ^[17]; Fang, X.  ^[3]; Sánchez, C. ^[4]; Pandey, S.  ^[4]; Dodelson, S.  ^[2]; Chintalapati, P.  ^[18]; Hoffmann, K. ^[19]; Alarcon, A. ^[20]; Alves, O.  ^[21]; Andrade-Oliveira, F. ^[22]; Baxter, E. J. ^[23]; Bechtol, K. ^[24]; Becker, M. R. ^[20]; Brandao-Souza, A. ^[25]; Camacho, H. ^[22]; Carnero Rosell, A. ^[26]; Carrasco Kind, M. ^[27]; Cawthon, R. ^[24]; Cordero, J. P.  ^[28]; Crocce, M. ^[29]; Davis, C. ^[6]; Di Valentino, E.  ^[28]; Drlica-Wagner, A.  ^[30]; Eckert, K. ^[4]; Eifler, T. F. ^[31]; Elidaiana, M. ^[7]; Elsner, F. ^[32]; Elvin-Poole, J. ^[8]; Everett, S. ^[33]; Fosalba, P. ^[29]; Friedrich, O. ^[34]; Gatti, M. ^[4]; Giannini, G.  ^[35]; Gruendl, R. A. ^[27]; Harrison, I. ^[36]; Hartley, W. G. ^[37]; Herner, K. ^[38]; Huang, H. ^[3]; Huff, E. M. ^[12]; Jarvis, M. ^[4]; Jeffrey, N. ^[39]; Kuropatkin, N. ^[38]; Leget, P.-F. ^[40]; Muir, J.  ^[6]; Mccullough, J.  ^[9]; Navarro Alsina, A.  ^[25]; Omori, Y. ^[41]; Park, Y. ^[42]; Porredon, A.  ^[8]; Rollins, R. ^[28]; Roodman, A. ^[43]; Rosenfeld, R.  ^[44]; Ross, A. J.  ^[45]; Rykoff, E. S. ^[43]; Sanchez, J.  ^[38]; Sevilla-Noarbe, I. ^[46]; Sheldon, E. S. ^[47]; Shin, T. ^[4]; Tutusaus, I. ^[48]; Varga, T. N. ^[49]; Weaverdyck, N. ^[7]; Wechsler, R. H. ^[50]; Yanny, B.  ^[38]; Yin, B. ^[2]; Zhang, Y. ^[38]; Zuntz, J. ^[51]; Abbott, T. M.C.  ^[52]; Aguena, M. ^[53]; Allam, S.  ^[38]; Annis, J. ^[38]; Bacon, D. ^[54]; Bertin, E. ^[55]; Bhargava, S. ^[56]; Bridle, S. L. ^[28]; Brooks, D. ^[13]; Buckley-Geer, E.  ^[57]; Burke, D. L. ^[43]; Carretero, J. ^[35]; Costanzi, M. ^[58]; da Costa, L. N. ^[59]; De Vicente, J. ^[46]; Diehl, H. T.  ^[38]; Dietrich, J. P. ^[60]; Doel, P. ^[13]; Ferrero, I. ^[61]; Flaugher, B.  ^[38]; Frieman, J.  ^[62]; García-Bellido, J. ^[63]; Gaztanaga, E.  ^[29]; Gerdes, D. W. ^[7]; Giannantonio, T. ^[64]; Gschwend, J. ^[59]; Gutierrez, G.  ^[38]; Hinton, S. R. ^[65]; Hollowood, D. L. ^[33]; Honscheid, K. ^[8]; Hoyle, B. ^[66]; James, D. J. ^[67]; Jeltema, T. ^[33]; Kuehn, K. ^[68]; Lahav, O. ^[13]; Lima, M. ^[69]; Lin, H. ^[38]; Maia, M. A.G. ^[59]; Marshall, J. L. ^[70]; Martini, P. ^[71]; Melchior, P. ^[72]; Menanteau, F. ^[73]; Miquel, R. ^[74]; Mohr, J. J. ^[66]; Morgan, R.  ^[24]; Ogando, R. L.C. ^[59]; Palmese, A. ^[62]; Paz-Chinchón, F. ^[75]; Petravick, D. ^[76]; Pieres, A. ^[59]; Malagón, A.A. Plazas ^[72]; Rodriguez-Monroy, M. ^[46]; Romer, A. K. ^[56]; Sanchez, E.  ^[46]; Scarpine, V. ^[38]; Schubnell, M. ^[7]; Scolnic, D. ^[14]; Serrano, S. ^[29]; Smith, M. ^[77]; Soares-Santos, M. ^[7]; Suchyta, E. ^[78]; Swanson, M. E.C. ^[76]; Tarle, G. ^[7]; Thomas, D. ^[54]; To, C. ^[50]

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1. Chicago U., KICP; Pennsylvania U.
2. Carnegie Mellon U.
3. Arizona U., Astron. Dept. - Steward Observ.
4. Pennsylvania U.
5. Northeastern U.; EPFL-ISIC, Lausanne
6. KIPAC, Menlo Park
7. Michigan U.
8. Ohio State U., CCAPP; Ohio State U.
9. KIPAC, Menlo Park; Stanford U., Phys. Dept.; SLAC
10. Chicago U., KICP
11. UC, Berkeley
12. Caltech, JPL
13. University Coll. London
14. Duke U.
15. Cambridge U., DAMTP
16. IAA, Granada; Edinburgh U., Inst. Astron.; Perimeter Inst. Theor. Phys.
17. Zurich, ETH
18. Northern Illinois U.
19. Zurich U., Inst. Math.
20. Argonne (main)
21. Sao Paulo, IFT
22. Sao Paulo, IFT; LIneA, Rio de Janeiro
23. Inst. Astron., Honolulu
24. Wisconsin U., Madison
25. Campinas State U.; LIneA, Rio de Janeiro
26. Madrid, CIEMAT; IAC, La Laguna; Laguna U., Tenerife
27. Illinois U., Urbana, Astron. Dept.; NCSA, Urbana
28. Jodrell Bank
29. Barcelona, IEEC; ICE, Bellaterra
30. Chicago U., Astron. Astrophys. Ctr.; Fermilab; Chicago U., KICP
31. Arizona U., Astron. Dept. - Steward Observ.; Caltech, JPL
32. Garching, Max Planck Inst., MPE
33. UC, Santa Cruz, Inst. Part. Phys.
34. Cambridge U., Inst. of Astron.
35. Barcelona, IFAE
36. Oxford U.; Jodrell Bank
37. Geneva U., Dept. Theor. Phys.
38. Fermilab
39. University Coll. London; LPENS, Paris
40. Clermont-Ferrand U.; Stanford U., Phys. Dept.; Paris U., VI-VII
41. Chicago U., Astron. Astrophys. Ctr.; Chicago U., KICP; KIPAC, Menlo Park
42. Tokyo U., IPMU
43. KIPAC, Menlo Park; SLAC
44. ICTP-SAIFR, Sao Paulo; LIneA, Rio de Janeiro
45. Ohio State U., CCAPP
46. Madrid, CIEMAT
47. Brookhaven
48. CSIC, Catalunya
49. Garching, Max Planck Inst., MPE; Munich U.
50. Stanford U., Phys. Dept.; KIPAC, Menlo Park; SLAC
51. Edinburgh U., Inst. Astron.
52. Cerro-Tololo InterAmerican Obs.
53. LIneA, Rio de Janeiro
54. Portsmouth U., ICG
55. Paris, Inst. Astrophys.
56. Sussex U.
57. Chicago U., Astron. Astrophys. Ctr.; Fermilab
58. Trieste U.; Trieste Observ.
59. LIneA, Rio de Janeiro; Rio de Janeiro Observ.
60. Munich U.
61. Inst. Theor. Astrophys., Oslo
62. Fermilab; Chicago U., KICP
63. Madrid, IFT
64. Cambridge U., Inst. of Astron.; Cambridge U., KICC
65. Queensland U.
66. Munich U.; Garching, Max Planck Inst., MPE
67. Harvard-Smithsonian Ctr. Astrophys.
68. Macquarie U.; Lowell Observ.
69. Sao Paulo U.; LIneA, Rio de Janeiro
70. Texas A-M
71. Ohio State U., CCAPP; Ohio State U., Dept. Astron.; Radcliffe Coll.
72. Princeton U., Astrophys. Sci. Dept.
73. NCSA, Urbana; Illinois U., Urbana, Astron. Dept.
74. ICREA, Barcelona; Barcelona, IFAE
75. NCSA, Urbana; Cambridge U., Inst. of Astron.
76. NCSA, Urbana
77. Southampton U.
78. Oak Ridge

Here, this work and its companion paper, Amon et al. [Phys. Rev. D 105, 023514 (2022)], present cosmic shear measurements and cosmological constraints from over 100 million source galaxies in the Dark Energy Survey (DES) Year 3 data. We constrain the lensing amplitude parameter 𝑆₈ ≡𝜎₈⁢$$\sqrt{Ω_{m}/0.3}$$ at the 3% level in Λ⁢ CDM: 𝑆₈ =0.75⁢9$$^{+0.025}_{−0.023}$$ (68% CL). Our constraint is at the 2% level when using angular scale cuts that are optimized for the Λ⁢ CDM analysis: 𝑆₈ =0.77⁢2$$^{+0.018}_{−0.017}$$ (68% CL). With cosmic shear alone, we find no statistically significant constraint on the dark energy equation-of-state parameter at our present statistical power. We carry out our analysis blind, and compare our measurement with constraints from two other contemporary weak lensing experiments: the Kilo-Degree Survey (KiDS) and Hyper-Suprime Camera Subaru Strategic Program (HSC). We additionally quantify the agreement between our data and external constraints from the Cosmic Microwave Background (CMB). Our DES Y3 result under the assumption of Λ⁢ CDM is found to be in statistical agreement with Planck 2018, although favors a lower 𝑆₈ than the CMB-inferred value by 2.3⁢𝜎 (a 𝑝-value of 0.02). This paper explores the robustness of these cosmic shear results to modeling of intrinsic alignments, the matter power spectrum and baryonic physics. We additionally explore the statistical preference of our data for intrinsic alignment models of different complexity. The fiducial cosmic shear model is tested using synthetic data, and we report no biases greater than 0.3⁢𝜎 in the plane of 𝑆₈ ×Ω_m caused by uncertainties in the theoretical models.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States); Carnegie Mellon University, Pittsburgh, PA (United States); Duke Univ., Durham, NC (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); University of Michigan, Ann Arbor, MI (United States)
• Sponsoring Organization: National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), High Energy Physics (HEP); United Kingdom Science and Technology Facilities Council
• Contributing Organization: DES Collaboration
• Grant/Contract Number: 89243024CSC000002; AC02-06CH11357; AC02-07CH11359; AC02-76SF00515; AC05-00OR22725; SC0007901; SC0010118; SC0019193; SC0021098
• OSTI ID: 1824145
• Report Number(s): DES--2019-0480; DES-2019-0480; FERMILAB-PUB--21-253-AE; oai:inspirehep.net:1866008; arXiv:2105.13544
• Journal Information: Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 2 Vol. 105; ISSN 2470-0029; ISSN 2470-0010
• Publisher: American Physical Society (APS)Copyright Statement
• Country of Publication: United States
• Language: English