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Type: Artigo
Title: Dark energy survey year 1 results: the effect of intracluster light on photometric redshifts for weak gravitational lensing
Author: Gruen, D.
Zhang, Y.
Palmese, A.
Yanny, B.
Busti, V.
Hoyle, B.
Melchior, P.
Miller, C. J.
Rozo, E.
Rykoff, E. S.
Varga, T. N.
Abdalla, F. B.
Allam, S.
Annis, J.
Avila, S.
Brooks, D.
Burke, D. L.
Rosell, A. C.
Kind, M. C.
Carretero, J.
Cawthon, R.
Crocce, M.
Cunha, C. E.
da Costa, L. N.
Davis, C.
De Vicente, J.
Desai, S.
Diehl, H. T.
Dietrich, J. P.
Drlica-Wagner, A.
Flaugher, B.
Fosalba, P.
Frieman, J.
Garcia-Bellido, J.
Gaztanaga, E.
Gerdes, D. W.
Gruendl, R. A.
Gschwend, J.
Hollowood, D. L.
Honscheid, K.
James, D. J.
Jeltema, T.
Krause, E.
Kron, R.
Kuehn, K.
Kuropatkin, N.
Lahav, O.
Lima, M.
Lin, H.
Maia, M. A. G.
Marshall, J. L.
Menanteau, F.
Miquel, R.
Ogando, R. L. C.
Plazas, A. A.
Romer, A. K.
Scarpine, V.
Sevilla-Noarbe, I.
Smith, M.
Soares-Santos, M.
Sobreira, F.
Suchyta, E.
Swanson, M. E. C.
Tarle, G.
Thomas, D.
Vikram, V.
Walker, A. R.
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 gt;= 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.
Subject: Lentes gravitacionais
Galáxias - Aglomerados
Cosmologia - Observações
Gravitational lenses
Galaxies - Clusters
Cosmology - Observations
Country: Reino Unido
Editor: Oxford University Press
Rights: aberto
Identifier DOI: 10.1093/mnras/stz2036
Date Issue: 2019
Appears in Collections:IFGW - Artigos e Outros Documentos

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