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A measurement of CMB cluster lensing with SPT and DES year 1 data

Author(s): Baxter, EJ; Raghunathan, S; Crawford, TM; Fosalba, P; Hou, Z; et al

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Abstract: Clusters of galaxies gravitationally lens the cosmic microwave background (CMB) radiation, resulting in a distinct imprint in the CMB on arcminute scales. Measurement of this effect offers a promising way to constrain the masses of galaxy clusters, particularly those at high redshift. We use CMB maps from the South Pole Telescope Sunyaev-Zel’dovich (SZ) survey to measure the CMB lensing signal around galaxy clusters identified in optical imaging from first year observations of the Dark Energy Survey. The cluster catalogue used in this analysis contains 3697 members with mean redshift of (z) over bar = 0.45. We detect lensing of the CMB by the galaxy clusters at 8.1 sigma significance. Using the measured lensing signal, we constrain the amplitude of the relation between cluster mass and optical richness to roughly 17 per cent precision, finding good agreement with recent constraints obtained with galaxy lensing. The error budget is dominated by statistical noise but includes significant contributions from systematic biases due to the thermal SZ effect and cluster miscentring.
Publication Date: May-2018
Electronic Publication Date: 9-Feb-2018
Citation: Baxter, EJ, Raghunathan, S, Crawford, TM, Fosalba, P, Hou, Z, Holder, GP, Omori, Y, Patil, S, Rozo, E, Abbott, TMC, Annis, J, Aylor, K, Benoit-Levy, A, Benson, BA, Bertin, E, Bleem, L, Buckley-Geer, E, Burke, DL, Carlstrom, J, Rosell, A Carnero, Kind, M Carrasco, Carretero, J, Chang, CL, Cho, H-M, Crites, AT, Crocce, M, Cunha, CE, da Costa, LN, D Andrea, CB, Davis, C, de Haan, T, Desai, S, Dietrich, JP, Dobbs, MA, Dodelson, S, Doel, P, Drlica-Wagner, A, Estrada, J, Everett, WB, Neto, A Fausti, Flaugher, B, Frieman, J, Garcia-Bellido, J, George, EM, Gaztanaga, E, Giannantonio, T, Gruen, D, Gruendl, RA, Gschwend, J, Gutierrez, G, Halverson, NW, Harrington, NL, Hartley, WG, Holzapfel, WL, Honscheid, K, Hrubes, JD, Jain, B, James, DJ, Jarvis, M, Jeltema, T, Knox, L, Krause, E, Kuehn, K, Kuhlmann, S, Kuropatkin, N, Lahav, O, Lee, AT, Leitch, EM, Li, TS, Lima, M, Luong-Van, D, Manzotti, A, March, M, Marrone, DP, Marshall, JL, Martini, P, McMahon, JJ, Melchior, P, Menanteau, F, Meyer, SS, Miller, CJ, Miquel, R, Mocanu, LM, Mohr, JJ, Natoli, T, Nord, B, Ogando, RLC, Padin, S, Plazas, AA, Pryke, C, Rapetti, D, Reichardt, CL, Romer, AK, Roodman, A, Ruhl, JE, Rykoff, E, Sako, M, Sanchez, E, Sayre, JT, Scarpine, V, Schaffer, KK, Schindler, R, Schubnell, M, Sevilla-Noarbe, I, Shirokoff, E, Smith, M, Smith, RC, Soares-Santos, M, Sobreira, F, Staniszewski, Z, Stark, A, Story, K, Suchyta, E, Tarle, G, Thomas, D, Troxel, MA, Vanderlinde, K, Vieira, JD, Walker, AR, Williamson, R, Zhang, Y, Zuntz, J. (2018). A measurement of CMB cluster lensing with SPT and DES year 1 data. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 476 (2674 - 2688. doi:10.1093/mnras/sty305
DOI: doi:10.1093/mnras/sty305
ISSN: 0035-8711
EISSN: 1365-2966
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Pages: 2674 - 2688
Type of Material: Journal Article
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.

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