Marceau Limousin et al. 2007 ApJ 668 643 doi:10.1086/521293
Combining Strong and Weak Gravitational Lensing in Abell 1689*
FREE ISSUEMarceau Limousin1, Johan Richard2, Eric Jullo3,4, Jean-Paul Kneib2,4, Bernard Fort5, Geneviève Soucail6, Árdís Elíasdóttir1, Priyamvada Natarajan7,8, Richard S. Ellis2, Ian Smail9, Oliver Czoske10, Graham P. Smith2,11, Patrick Hudelot12, Sébastien Bardeau13, Harald Ebeling14, Eiichi Egami15 and Kirsten K. Knudsen16
Show affiliationsWe 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
Mpc (corresponding to a 3D mass equal to M200 = [1.32 ± 0.2] × 1015 h70 M
). 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.
- Footnote
- Subject headings
cosmology: observations; galaxies: clusters: individual (A1689); gravitational lensing
- Dates
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Issue 2 (2007 October 20)
Received 2006 December 1, accepted for publication 2007 June 16
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Combining Strong and Weak Gravitational Lensing in Abell 1689
Marceau Limousin et al. 2007 ApJ 668 643
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Limits to magnetic resonance microscopy
Paul Glover and Sir Peter Mansfield 2002 Rep. Prog. Phys. 65 1489
-
Comment on `On the Coulomb potential in one dimension' by P Kurasov
Werner Fischer et al 1997 J. Phys. A: Math. Gen. 30 5579
-
On the convergence of the WKB series for the angular momentum operator
Luca Salasnich and Fabio Sattin 1997 J. Phys. A: Math. Gen. 30 7597
-
Dynamical decoherence control of multi-partite systems
Goren Gordon 2009 J. Phys. B: At. Mol. Opt. Phys. 42 223001
-
A comparison of standard methods for measuring water vapour permeability of fabrics
Elizabeth A McCullough et al 2003 Meas. Sci. Technol. 14 1402
-
A facile method to produce highly monodispersed nanospheres of cystine aggregates
Hongliang Han et al 2006 Nanotechnology 17 5163
-
Scalar waves on a naked-singularity background
John G Stalker and A Shadi Tahvildar-Zadeh 2004 Class. Quantum Grav. 21 2831
-
MOST Detects g-Modes in the Be Star HD 163868
G. A. H. Walker et al 2005 ApJ 635 L77
-
A deformation of AdS5 × S5
Jerome P Gauntlett et al 2004 Class. Quantum Grav. 21 5021