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Publication Detail
Dark Energy Survey year 1 results: Joint analysis of galaxy clustering, galaxy lensing, and CMB lensing two-point functions
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Article
  • Authors:
    Abbott TMC, Abdalla FB, Alarcon A, Allam S, Annis J, Avila S, Aylor K, Banerji M, Banik N, Baxter EJ, Bechtol K, Becker MR, Benson BA, Bernstein GM, Bertin E, Bianchini F, Blazek J, Bleem LE, Bridle SL, Brooks D, Buckley-Geer E, Burke DL, Carlstrom JE, Carnero Rosell A, Carrasco Kind M, Carretero J, Castander FJ, Cawthon R, Chang C, Chang CL, Cho H-M, Choi A, Chown R, Crawford TM, Crites AT, Crocce M, Cunha CE, D’Andrea CB, da Costa LN, Davis C, de Haan T, DeRose J, Desai S, De Vicente J, Diehl HT, Dietrich JP, Dobbs MA, Dodelson S, Doel P, Drlica-Wagner A, Eifler TF, Elvin-Poole J, Everett WB, Flaugher B, Fosalba P, Friedrich O, Frieman J, García-Bellido J, Gatti M, Gaztanaga E, George EM, Gerdes DW, Giannantonio T, Gruen D, Gruendl RA, Gschwend J, Gutierrez G, Halverson NW, Harrington NL, Hartley WG, Holder GP, Hollowood DL, Holzapfel WL, Honscheid K, Hou Z, Hoyle B, Hrubes JD, Huterer D, Jain B, James DJ, Jarvis M, Jeltema T, Johnson MWG, Johnson MD, Kent S, Kirk D, Knox L, Kokron N, Krause E, Kuehn K, Lahav O, Lee AT, Leitch EM, Li TS, Lima M, Lin H, Luong-Van D, MacCrann N, Maia MAG, Manzotti A, Marrone DP, Marshall JL, Martini P, McMahon JJ, Menanteau F, Meyer SS, Miquel R, Mocanu LM, Mohr JJ, Muir J, Natoli T, Nicola A, Nord B, Omori Y, Padin S, Pandey S, Plazas AA, Porredon A, Prat J, Pryke C, Rau MM, Reichardt CL, Rollins RP, Romer AK, Roodman A, Ross AJ, Rozo E, Ruhl JE, Rykoff ES, Samuroff S, Sánchez C, Sanchez E, Sayre JT, Scarpine V, Schaffer KK, Secco LF, Serrano S, Sevilla-Noarbe I, Sheldon E, Shirokoff E, Simard G, Smith M, Soares-Santos M, Sobreira F, Staniszewski Z, Stark AA, Story KT, Suchyta E, Swanson MEC, Tarle G, Thomas D, Troxel MA, Tucker DL, Vanderlinde K, Vieira JD, Vielzeuf P, Vikram V, Walker AR, Wechsler RH, Weller J, Williamson R, Wu WLK, Yanny B, Zahn O, Zhang Y, Zuntz J
  • Publisher:
    American Physical Society (APS)
  • Publication date:
    15/07/2019
  • Journal:
    Physical Review D
  • Volume:
    100
  • Issue:
    2
  • Article number:
    023541
  • Status:
    Published
  • Print ISSN:
    2470-0010
  • Language:
    en
Abstract
We perform a joint analysis of the auto and cross-correlations between three cosmic fields: the galaxy density field, the galaxy weak lensing shear field, and the cosmic microwave background (CMB) weak lensing convergence field. These three fields are measured using roughly 1300 sq. deg. of overlapping optical imaging data from first year observations of the Dark Energy Survey (DES) and millimeter-wave observations of the CMB from both the South Pole Telescope Sunyaev-Zel’dovich survey and Planck. We present cosmological constraints from the joint analysis of the two-point correlation functions between galaxy density and galaxy shear with CMB lensing. We test for consistency between these measurements and the DES-only two-point function measurements, finding no evidence for inconsistency in the context of flat Λ CDM cosmological models. Performing a joint analysis of five of the possible correlation functions between these fields (excluding only the CMB lensing autospectrum) yields S₈ ≡ σ₈ √Ω_{m}/0.3 = 0.782 ⁺⁰·⁰¹⁹_₀.₀₂₅ and Ω_{m} = 0.260 ⁺⁰·⁰²⁹_₀.₀₁₉. We test for consistency between these five correlation function measurements and the Planck-only measurement of the CMB lensing autospectrum, again finding no evidence for inconsistency in the context of flat Λ CDM models. Combining constraints from all six two-point functions yields S₈ = 0.776 ⁺⁰·⁰¹⁴_₀.₀₂₁ and Ω = 0.271 ⁺⁰·⁰²²_₀.₀₁₆. These results provide a powerful test and confirmation of the results from the first year DES joint-probes analysis.
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