Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/344954
Type: Artigo
Title: Discovery of the lensed quasar system DES J0408-5354
Author: Lin, H.
Buckley-Geer, E.
Agnello, A.
Ostrovski, F.
McMahon, R. G.
Nord, B.
Kuropatkin, N.
Tucker, D. L.
Treu, T.
Chan, J. H. H.
Suyu, S. H.
Diehl, H. T.
Collett, T.
Gill, M. S. S.
More, A.
Amara, A.
Auger, M. W.
Courbin, F.
Fassnacht, C. D.
Frieman, J.
Marshall, P. J.
Meylan, G.
Rusu, C. E.
Abbott, T. M. C.
Abdalla, F. B.
Allam, S.
Banerji, M.
Bechtol, K.
Benoit-Levy, A.
Bertin, E.
Brooks, D.
Burke, D. L.
Rosell, A. C.
Kind, M. C.
Carretero, J.
Castander, F. J.
Crocce, M.
D'Andrea, C. B.
da Costa, L. N.
Desai, S.
Dietrich, J. P.
Eifler, T. F.
Finley, D. A.
Flaugher, B.
Fosalba, P.
Garcia-Bellido, J.
Gaztanaga, E.
Gerdes, D. W.
Goldstein, D. A.
Gruen, D.
Gruendl, R. A.
Gschwend, J.
Gutierrez, G.
Honscheid, K.
James, D. J.
Kuehn, K.
Lahav, O.
Li, T. S.
Lima, M.
Maia, M. A. G.
March, M.
Marshall, J. L.
Martini, P.
Melchior, P.
Menanteau, F.
Miquel, R.
Ogando, R. L. C.
Plazas, A. A.
Romer, A. K.
Sanchez, E.
Schindler, R.
Schubnell, M.
Sevilla-Noarbe, I.
Smith, M.
Smith, R. C.
Sobreira, F.
Suchyta, E.
Swanson, M. E. C.
Tarle, G.
Thomas, D.
Walker, A. R.
Abstract: We report the discovery and spectroscopic confirmation of the quad-like lensed quasar system DES J0408-5354 found in the Dark Energy Survey (DES) Year 1 (Y1) data. This system was discovered during a search for DES Y1 strong lensing systems using a method that identified candidates as red galaxies with multiple blue neighbors. DES J0408-5354 consists of a central red galaxy surrounded by three bright (i < 20) blue objects and a fourth red object. Subsequent spectroscopic observations using the Gemini South telescope confirmed that the three blue objects are indeed the lensed images of a quasar with redshift z = 2.375, and that the central red object is an early-type lensing galaxy with redshift z = 0.597. DES J0408-5354 is the first quad lensed quasar system to be found in DES and begins to demonstrate the potential of DES to discover and dramatically increase the sample size of these very rare objects.
Subject: Lentes gravitacionais
Quasars
Levantamentos
Gravitational lenses
Quasars
Surveys
Country: Reino Unido
Editor: Institute of Physics Publishing
Rights: aberto
Identifier DOI: 10.3847/2041-8213/aa624e
Address: https://iopscience.iop.org/article/10.3847/2041-8213/aa624e/meta
Date Issue: 2017
Appears in Collections:IFGW - Artigos e Outros Documentos

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