New strong lensing modelling of SDSS J2222+2745 enhanced with VLT/MUSE spectroscopy

Abstract

SDSS J2222+2745, at z = 0.489, is one of the few currently known lens clusters with multiple images of a background (z = 2.801) quasar with measured time delays. We combine imaging from the Hubble Space Telescope (HST) with recent Multi Unit Spectroscopic Explorer (MUSE) spectroscopic data to securely identify 34 cluster members and 12 multiple images from 3 background sources. We measure the stellar velocity dispersions of 13 cluster galaxies, enabling an independent estimate of the contribution of the sub-halo mass component to the lens total mass. The projected total mass distribution of the lens cluster is best modelled with a single large-scale mass component, a galaxy-scale component, anchored by the MUSE kinematic information, and an external shear. The best-fit strong lensing model yields a root mean square separation between the model-predicted and observed positions of the multiple images of 0".29. When analysing the impact of systematic uncertainties, stemming from modelling assumptions and used observables, we find that the projected total mass profile, relative weight of the sub-halo mass component, and critical lines are consistent, within the statistical uncertainties. The predicted magnification and time delay values are, instead, more sensitive to the local details of the lens total mass distribution, and vary significantly among lens models that are similarly good at reproducing the observed multiple image positions. Due to its complex morphology, the low number of point-like multiple images, and current model degeneracies, it becomes clear that additional information (from the observed surface brightness distribution of lensed sources and the measured time delays) needs to be included in the modelling of SDSS J2222+2745 for accurate and precise cosmological measurements. The full MUSE secure spectroscopic catalogue presented in this work is made publicly available.

arXiv comment17 pages, 9 Figures, 5 Tables. Accepted for publication in Astronomy & Astrophysics. The full MUSE spectroscopic catalogue presented in this work is made publicly available at www.fe.infn.it/astro/lensing

References in corpus (38)

• Parametric Recovery of Line-of-Sight Velocity Distributions from Absorption-Line Spectra of Galaxies via Penalized Likelihood
• The Eighth Data Release of the Sloan Digital Sky Survey: First Data from SDSS-III
• Improving the full spectrum fitting method: accurate convolution with Gauss-Hermite functions
• A Bayesian approach to strong lensing modelling of galaxy clusters
• Hubble Space Telescope Observations of the Lensing Cluster Abell 2218
• The Data Processing Pipeline for the MUSE Instrument
• ZAP -- Enhanced PCA Sky Subtraction for Integral Field Spectroscopy
• A Gravitationally Lensed Quasar with Quadruple Images Separated by 14.62 Arcseconds
• Early-type galaxies in the SDSS. IV. Colors and chemical evolution
• The Tilt of the Fundamental Plane of Elliptical Galaxies: I. Dynamical and Structural Effects
• Precise Strong Lensing Mass Modeling of Four Hubble Frontier Fields Clusters and a Sample of Magnified High-Redshift Galaxies
• CLASH-VLT: Insights on the mass substructures in the Frontier Fields Cluster MACS J0416.1-2403 through accurate strong lens modeling
• CLASH-VLT: A Highly Precise Strong Lensing Model of the Galaxy Cluster RXC J2248.7-4431 (Abell S1063) and Prospects for Cosmography
• A refined mass distribution of the cluster MACS J0416.1$-$2403 from a new large set of spectroscopic multiply lensed sources
• CLASH-VLT: Dissecting the Frontier Fields Galaxy Cluster MACS J0416.1-2403 with $\sim 800$ Spectra of Member Galaxies
• The story of supernova 'Refsdal' told by MUSE
• A New Survey for Giant Arcs
• Measuring the value of the Hubble constant "à la Refsdal"
• Strong lensing models of eight CLASH clusters from extensive spectroscopy: accurate total mass reconstructions in the cores
• Enhanced cluster lensing models with measured galaxy kinematics
• The systematics of strong lens modeling quantified: the effects of constraint selection and redshift information on magnification, mass, and multiple image predictability
• Mass distribution in the core of MACS J1206: robust modeling from an exceptionally large sample of central multiple images
• Strong Lens Models for 37 Clusters of Galaxies from the SDSS Giant Arcs Survey
• On the accuracy of time-delay cosmography in the Frontier Fields Cluster MACS J1149.5+2223 with supernova Refsdal
• SDSSJ2222+2745 A Gravitationally Lensed Sextuple Quasar with Maximum Image Separation of 15.1" Discovered in the Sloan Giant Arcs Survey
• A new high-precision strong lensing model of the galaxy cluster MACS J0416.1-2403
• The Hidden Fortress: Structure and substructure of the complex strong lensing cluster SDSS J1029+2623
• The Redshift Distribution of Giant Arcs in the Sloan Giant Arcs Survey
• CLASH-VLT: Abell~S1063. Cluster assembly history and spectroscopic catalogue
• On the Initial Mass Function and tilt of the Fundamental Plane of massive early-type galaxies
• MUSE observations of the lensing cluster SMACSJ2031.8-4036: new constraints on the mass distribution in the cluster core
• Lens Model and Time Delay Predictions for the Sextuply Lensed Quasar SDSS J2222+2745
• The core of the massive cluster merger MACS J0417.5-1154 as seen by VLT/MUSE
• Improved strong lensing modelling of galaxy clusters using the Fundamental Plane: Detailed mapping of the baryonic and dark matter mass distribution of Abell S1063
• Time Delay Measurements for the Cluster-lensed Sextuple Quasar SDSS J2222+2745
• VLT/MUSE observations of SDSS J1029+2623: towards a high-precision strong lensing model
• Pilot-WINGS: An extended MUSE view of the structure of Abell 370
• Constraining the multi-scale dark-matter distribution in CASSOWARY 31 with strong gravitational lensing and stellar dynamics

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