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Solving the Abell 1689 puzzle: A combined strong and weak gravitational lensing analysis

dc.contributor.authorLIMOUSIN, M.
dc.contributor.authorRICHARD, J.
dc.contributor.authorKNEIB, J. -P.
dc.contributor.authorJULLO, E.
dc.contributor.authorFORT, B.
dc.contributor.authorSOUCAIL, G.
dc.contributor.authorELÍASDÓTTIR, A.
dc.contributor.authorNATARAJAN, P.
dc.contributor.authorSMAIL, I.
dc.contributor.authorELLIS, R. S.
dc.contributor.authorCZOSKE, O.
dc.contributor.authorHUDELOT, P.
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorBARDEAU, Sebastien
dc.contributor.authorEBELING, H.
dc.contributor.authorSMITH, G. P.
dc.date.created2006
dc.date.issued2007
dc.identifier.issn0004-637X
dc.descriptionastro-ph/0612165
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 HST/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 24 multiply imaged systems with 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. In particular, we have detected 5 strong galaxy-galaxy lensing systems just outside the Einstein ring region, further constraining the mass profile. Our strong lensing mass model 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 strong and weak lensing mass models reported in earlier work. [ABRIDGED]
dc.language.isoen
dc.publisherAmerican Astronomical Society
dc.subject.encosmology: observations — galaxies: clusters: individual (A1689) — gravita- tional lensing
dc.title.enSolving the Abell 1689 puzzle: A combined strong and weak gravitational lensing analysis
dc.typeArticle de revue
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]
dc.identifier.arxivastro-ph/0612165
bordeaux.journalThe Astrophysical Journal
bordeaux.page643-666
bordeaux.volume668
bordeaux.issue2
bordeaux.peerReviewednon
hal.identifierhal-00130494
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00130494v1
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