Dark Energy Survey Year 1 Results: Cross-correlation between Dark Energy Survey Y1 galaxy weak lensing and South Pole Telescope plus Planck CMB weak lensing

• Main Authors: Omori, Y, Baxter, EJ, Chang, C, Kirk, D, Alarcon, A, Bernstein, GM, Bleem, LE, Cawthon, R, Choi, A, Chown, R, Crawford, TM, Davis, C, De Vicente, J, DeRose, J, Dodelson, S, Eifler, TF, Fosalba, P, Friedrich, O, Gatti, M, Gaztanaga, E, Giannantonio, T, Gruen, D, Hartley, WG, Holder, GP, Hoyle, B, Huterer, D, Jain, B, Jarvis, M, Krause, E, MacCrann, N, Miquel, R, Prat, J, Rau, MM, Reichardt, CL, Rozo, E, Samuroff, S, Sanchez, C, Secco, LF, Sheldon, E, Simard, G, Troxel, MA, Vielzeuf, P, Wechsler, RH, Zuntz, J, Abbott, TMC, Abdalla, FB, Allam, S, Annis, J, Avila, S, Aylor, K, Benson, BA, Bertin, E, Bridle, SL, Brooks, D, Burke, DL, Carlstrom, JE, Carnero Rosell, A, Kind, MC, Carretero, J, Castander, FJ, Chang, CL, Cho, H-M, Crites, AT, Crocce, M, Cunha, CE, da Costa, LN, de Haan, T, Desai, S, Diehl, HT, Dietrich, JP, Dobbs, MA, Everett, WB, Fernandez, E, Flaugher, B, Frieman, J, Garcia-Bellido, J, George, EM, Gruendl, RA, Gutierrez, G, Halverson, NW, Harrington, NL, Hollowood, DL, Honscheid, K, Holzapfel, WL, Hou, Z, Hrubes, JD, James, DJ, Jeltema, T, Kuehn, K, Kuropatkin, N, Lima, M, Lin, H, Lee, AT, Leitch, EM, Luong-Van, D, Maia, MAG, Manzotti, A, Marrone, DP, Marshall, JL, Martini, P, McMahon, JJ, Melchior, P, Menanteau, F, Meyer, SS, Mocanu, LM, Mohr, JJ, Natoli, T, Ogando, RLC, Padin, S, Plazas, AA, Pryke, C, Romer, AK, Roodman, A, Ruhl, JE, Rykoff, ES, Sanchez, E, Scarpine, V, Schaffer, KK, Schindler, R, Sevilla-Noarbe, I, Shirokoff, E, Smith, M, Smith, RC, Soares-Santos, M, Sobreira, F, Staniszewski, Z, Stark, AA, Story, KT, Suchyta, E, Swanson, MEC, Tarle, G, Thomas, D, Vanderlinde, K, Vieira, JD, Vikram, V, Walker, AR, Weller, J, Williamson, R, Wu, WLK, Zahn, O
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: AMER PHYSICAL SOC 2019
• Subjects: Cosmic microwave background; Large scale structure of the Universe; South Pole; South pole
• Online Access: https://discovery.ucl.ac.uk/id/eprint/10080893/1/PhysRevD.100.043517.pdf; https://discovery.ucl.ac.uk/id/eprint/10080893/

We cross-correlate galaxy weak lensing measurements from the Dark Energy Survey (DES) year-one data with a cosmic microwave background (CMB) weak lensing map derived from South Pole Telescope (SPT) and Planck data, with an effective overlapping area of 1289 deg 2 . With the combined measurements from four source galaxy redshift bins, we obtain a detection significance of 5.8 σ . We fit the amplitude of the correlation functions while fixing the cosmological parameters to a fiducial Λ CDM model, finding A = 0.99 ± 0.17 . We additionally use the correlation function measurements to constrain shear calibration bias, obtaining constraints that are consistent with previous DES analyses. Finally, when performing a cosmological analysis under the Λ CDM model, we obtain the marginalized constraints of Ω m = 0.26 1 + 0.070 − 0.051 and S 8 ≡ σ 8 √ Ω m / 0.3 = 0.66 0 + 0.085 − 0.100 . These measurements are used in a companion work that presents cosmological constraints from the joint analysis of two-point functions among galaxies, galaxy shears, and CMB lensing using DES, SPT, and Planck data.