__smbhome.uscs.susx.ac.uk_bw233_Desktop_SRO_SRO - Kathy Romer_Post-Easter 2018_sty305.pdf (1.64 MB)
A measurement of CMB cluster lensing with SPT and DES year 1 data
journal contribution
posted on 2023-06-09, 12:43 authored by E J Baxter, S Raghunathan, T M Crawford, P Fosalba, Z Hou, G P Holder, Y Omori, S Patil, E Rozo, T M C Abbott, J Annis, K Aylor, A Benoit-Lévy, B A Benson, E Bertin, L Bleem, E Buckley-Geer, D L Burke, J Carlstrom, A Carnero Rosell, M Carrasco Kind, J Carretero, C L Chang, H-M Cho, A T Crites, M Crocce, C E Cunha, L N da Costa, C B D'Andrea, C Davis, T de Haan, S Desai, J P Dietrich, M A Dobbs, S Dodelson, P Doel, A Drlica-Wagner, J Estrada, W B Everett, A Fausti Neto, B Flaugher, J Frieman, J García-Bellido, E M George, E Gaztanaga, T Giannantonio, D Gruen, R A Gruendl, J Gschwend, G Gutierrez, N W Halverson, N L Harrington, W G Hartley, W L Holzapfel, K Honscheid, J D Hrubes, B Jain, D J James, M Jarvis, T Jeltema, L Knox, E Krause, K Kuehn, S Kuhlmann, N Kuropatkin, O Lahav, A T Lee, E M Leitch, T S Li, M Lima, D Luong-Van, A Manzotti, M March, D P Marrone, J L Marshall, P Martini, J J McMahon, P Melchior, F Menanteau, S S Meyer, C J Miller, R Miquel, L M Mocanu, J J Mohr, T Natoli, B Nord, R L C Ogando, S Padin, A A Plazas, C Pryke, D Rapetti, C L Reichardt, Kathy RomerKathy Romer, A Roodman, J E Ruhl, E Rykoff, M Sako, E Sanchez, J T Sayre, V Scarpine, K K Schaffer, R Schindler, M Schubnell, I Sevilla-Noarbe, E Shirokoff, M Smith, R C Smith, M Soares-Santos, F Sobreira, Z Staniszewski, A Stark, K Story, E Suchyta, G Tarle, D Thomas, M A Troxel, K Vanderlinde, J D Vieira, A R Walker, R Williamson, Y Zhang, J ZuntzClusters 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¯ = 0.45. We detect lensing of the CMB by the galaxy clusters at 8.1s 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.
Funding
University of Sussex Astronomy Consolidated Grant 2017-2020; G2050; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/P000525/1
History
Publication status
- Published
File Version
- Published version
Journal
Monthly Notices of the Royal Astronomical SocietyISSN
0035-8711Publisher
Oxford University PressExternal DOI
Issue
2Volume
476Page range
2674-2688Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-04-04First Open Access (FOA) Date
2018-04-04First Compliant Deposit (FCD) Date
2018-04-04Usage metrics
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