Dark Energy Survey Year 1 results: the effect of intracluster light on photometric redshifts for weak gravitational lensing

Rozo, E.

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Author

Rozo, E.

Affiliation

Univ Arizona, Dept Phys

Issue Date

2019-09

Citation

D Gruen, Y Zhang, A Palmese, B Yanny, V Busti, B Hoyle, P Melchior, C J Miller, E Rozo, E S Rykoff, T N Varga, F B Abdalla, S Allam, J Annis, S Avila, D Brooks, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, R Cawthon, M Crocce, C E Cunha, L N da Costa, C Davis, J De Vicente, S Desai, H T Diehl, J P Dietrich, A Drlica-Wagner, B Flaugher, P Fosalba, J Frieman, J García-Bellido, E Gaztanaga, D W Gerdes, R A Gruendl, J Gschwend, D L Hollowood, K Honscheid, D J James, T Jeltema, E Krause, R Kron, K Kuehn, N Kuropatkin, O Lahav, M Lima, H Lin, M A G Maia, J L Marshall, F Menanteau, R Miquel, R L C Ogando, A A Plazas, A K Romer, V Scarpine, I Sevilla-Noarbe, M Smith, M Soares-Santos, F Sobreira, E Suchyta, M E C Swanson, G Tarle, D Thomas, V Vikram, A R Walker, (DES Collaboration), Dark Energy Survey Year 1 results: the effect of intracluster light on photometric redshifts for weak gravitational lensing, Monthly Notices of the Royal Astronomical Society, Volume 488, Issue 3, September 2019, Pages 4389–4399, https://doi.org/10.1093/mnras/stz2036

Journal

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

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This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.

Abstract

We study the effect of diffuse intracluster light on the critical surface mass density estimated from photometric redshifts of lensing source galaxies, and the resulting bias in a weak lensing measurement of galaxy cluster mass. Under conservative assumptions, we find the bias to he negligible for imaging surveys like the Dark Energy Survey with a recommended scale cut of >= 200 kpc distance from cluster centres. For significantly deeper lensing source galaxy catalogues from present and future surveys like the Large Synoptic Survey Telescope program, more conservative scale and source magnitude cuts or a correction of the effect may be necessary to achieve percent level lensing measurement accuracy, especially at the massive end of the cluster population.

ISSN

0035-8711

DOI

10.1093/mnras/stz2036

Version

Final published version

Sponsors

NASA through the Einstein Fellowship Program [PF5-160138]; NASA through Chandra Award [GO8-19101A]; U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-AC02-76SF00515]; U.S. Department of EnergyUnited States Department of Energy (DOE); U.S. National Science FoundationNational Science Foundation (NSF); Ministry of Science and Education of SpainMinistry of Education and Science, Spain; Science and Technology Facilities Council of the United KingdomScience & Technology Facilities Council (STFC); Higher Education Funding Council for EnglandHigher Education Funding Council for England; National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign; Kavli Institute of Cosmological Physics at the University of Chicago; Center for Cosmology and Astro-Particle Physics at the Ohio State UniversityOhio State University; Mitchell Institute for Fundamental Physics and Astronomy at Texas AM University; Financiadora de Estudos e ProjetosCiencia Tecnologia e Inovacao (FINEP); Fundacao Carlos Chagas Fillho de Amparo a Pesquisa do Estado do Rio de Janeiro; Conselho Nacional de Desenvolvimento Cientifico e TecnologicoNational Council for Scientific and Technological Development (CNPq); Ministerio da Ciencia, Tecnologia e Inovacao; Deutsche ForschungsgemeinschaftGerman Research Foundation (DFG); Argonne National LaboratoryUnited States Department of Energy (DOE)University of Chicago; University of California at Santa Cruz; University of CambridgeUniversity of Cambridge; Centro de Investigations Energeticas, Medioambientales y Tecnologicas-Madrid; University of ChicagoUniversity of Chicago; University College London; DES-Brazil Consortium; University of Edinburgh; Eidgenossische Technische Hochschule (ETH) ZurichETH Zurich; Fermi National Accelerator LaboratoryUnited States Department of Energy (DOE)University of Chicago; University of Illinois at Urbana-Champaign; Institut de Ciencies de l'Espai (IEEC/CSIC); Institut de Fisica d'Altes Energies; Lawrence Berkeley National LaboratoryUnited States Department of Energy (DOE); Ludwig-Maximilians Universitat Munchen; University of MichiganUniversity of Michigan System; National Optical Astronomy ObservatoryNational Science Foundation (NSF)NSF - Directorate for Mathematical & Physical Sciences (MPS); University of Nottingham; Ohio State UniversityOhio State University; University of Pennsylvania; University of Portsmouth; SLAC National Accelerator LaboratoryStanford UniversityUnited States Department of Energy (DOE); Stanford UniversityStanford University; University of Sussex; Texas AM University; OzDES Membership Consortium; National Science FoundationNational Science Foundation (NSF) [AST-1138766, AST-1536171]; MINECOSpanish Ministry of Economy & Competitiveness [AYA2015-71825, ESP2015-66861, FPA201.5-68048, SEV-2016-0588, SEV-2016-0597, MDM-2015-0509]; ERDF funds from the European Union; CERCA program of the Generalitat de Catalunya; European Research Council under the European Union's Seventh Framework Program (FR7/2007-2013); ERCEuropean Research Council (ERC) [240672, 291329, 306478]; Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO)Australian Research Council [CE110001020]; Brazilian Institute Nacional de Ciencia e Tecnologia (INCT) e-Universe CNNq [465376/2014-2]; U.S. Department of Energy, Office of Science, Office of High Energy PhysicsUnited States Department of Energy (DOE) [DE-AC02-07CH11359]

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