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Combining Strong and Weak Gravitational Lensing in Abell 1689

hal.structure.identifierLaboratoire Astrophysique de Toulouse-Tarbes [LATT]
dc.contributor.authorLIMOUSIN, Marceau
hal.structure.identifierLaboratoire Astrophysique de Toulouse-Tarbes [LATT]
hal.structure.identifierCalifornia Institute of Technology [CALTECH]
dc.contributor.authorRICHARD, Johan
hal.structure.identifierLaboratoire d'Astrophysique de Marseille [LAM]
dc.contributor.authorJULLO, Eric
hal.structure.identifierLaboratoire d'Astrophysique de Marseille [LAM]
dc.contributor.authorKNEIB, Jean-Paul
hal.structure.identifierInstitut d'Astrophysique de Paris [IAP]
dc.contributor.authorFORT, Bernard
hal.structure.identifierLaboratoire Astrophysique de Toulouse-Tarbes [LATT]
hal.structure.identifierServices communs OMP [UMS 831]
dc.contributor.authorSOUCAIL, Geneviève
dc.contributor.authorELÍASDÓTTIR, Árdís
dc.contributor.authorNATARAJAN, Priyamvada
hal.structure.identifierCalifornia Institute of Technology [CALTECH]
dc.contributor.authorELLIS, Richard S.
hal.structure.identifierInstitute for Computational Cosmology [ICC]
dc.contributor.authorSMAIL, Ian
dc.contributor.authorCZOSKE, Oliver
dc.contributor.authorSMITH, Graham P.
hal.structure.identifierServices communs OMP [UMS 831]
dc.contributor.authorHUDELOT, Patrick
hal.structure.identifierLaboratoire Astrophysique de Toulouse-Tarbes [LATT]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorBARDEAU, Sebastien
hal.structure.identifierInstitute for Astronomy [Honolulu]
dc.contributor.authorEBELING, Harald
hal.structure.identifierSteward Observatory
dc.contributor.authorEGAMI, Eiichi
dc.contributor.authorKNUDSEN, Kirsten K.
dc.date.issued2007-10
dc.identifier.issn0004-637X
dc.description.abstractEnWe present a reconstruction of the mass distribution of galaxy cluster Abell 1689 at z=0.18 using detected strong lensing features from deep ACS observations and extensive ground based spectroscopy. Earlier analyses have reported up to 32 multiply imaged systems in this cluster, of which only 3 were spectroscopically confirmed. In this work, we present a parametric strong lensing mass reconstruction using 34 multiply imaged systems of which 24 have newly determined spectroscopic redshifts, which is a major step forward in building a robust mass model. In turn, the new spectroscopic data allows a more secure identification of multiply imaged systems. The resultant mass model enables us to reliably predict the redshifts of additional multiply imaged systems for which no spectra are currently available, and to use the location of these systems to further constrain the mass model. Using our strong lensing mass model, we predict on larger scale a shear signal which is consistent with that inferred from our large scale weak lensing analysis derived using CFH12K wide field images. Thanks to a new method for reliably selecting a well defined background lensed galaxy population, we resolve the discrepancy found between the NFW concentration parameters derived from earlier strong and weak lensing analysis. The derived parameters for the best fit NFW profile is found to be c200=7.6+/-1.6 and r200=2.16+/-0.10 h-170 Mpc (corresponding to a 3D mass equal to M200=[1.32+/-0.2]×1015 h70 Msolar). The large number of new constraints incorporated in this work makes Abell 1689 the most reliably reconstructed cluster to date. This well calibrated mass model, which we here make publicly available, will enable us to exploit Abell 1689 efficiently as a gravitational telescope, as well as to potentially constrain cosmology. Based on observations obtained at the Canada-France-Hawaii Telescope (CFHT), which is operated by the National Research Council of Canada, the Institut National des Sciences de l'Univers of the Centre National de la Recherche Scientifique of France, and the University of Hawaii. Also based on observations from the NASA/ESA Hubble Space Telescope (programs 9289 and 10150) obtained at the Space Telescope Science Institute, which is operated by AURA under NASA contract NAS5-26555.
dc.language.isoen
dc.publisherAmerican Astronomical Society
dc.subject.enCosmology: Observations
dc.subject.enGalaxies: Clusters: Individual: Alphanumeric: A1689
dc.subject.enCosmology: Gravitational Lensing
dc.title.enCombining Strong and Weak Gravitational Lensing in Abell 1689
dc.typeArticle de revue
dc.identifier.doi10.1086/521293
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
dc.identifier.arxivastro-ph/0612165
bordeaux.journalThe Astrophysical Journal
bordeaux.page643-666
bordeaux.volume668
bordeaux.peerReviewedoui
hal.identifierhal-00193518
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00193518v1
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