Bayesian Strong Gravitational-Lens Modeling on Adaptive Grids: Objective Detection of Mass Substructure in Galaxies

Abstract

We introduce a new adaptive and fully Bayesian grid-based method to model strong gravitational lenses with extended images. The primary goal of this method is to quantify the level of luminous and dark-mass substructure in massive galaxies, through their effect on highly-magnified arcs and Einstein rings. The method is adaptive on the source plane, where a Delaunay tessellation is defined according to the lens mapping of a regular grid onto the source plane. The Bayesian penalty function allows us to recover the best non-linear potential-model parameters and/or a grid-based potential correction and to objectively quantify the level of regularization for both the source and the potential. In addition, we implement a Nested-Sampling technique to quantify the errors on all non-linear mass model parameters -- ... -- and allow an objective ranking of different potential models in terms of the marginalized evidence. In particular, we are interested in comparing very smooth lens mass models with ones that contain mass-substructures. The algorithm has been tested on a range of simulated data sets, created from a model of a realistic lens system. One of the lens systems is characterized by a smooth potential with a power-law density profile, twelve include a NFW dark-matter substructure of different masses and at different positions and one contains two NFW dark substructures with the same mass but with different positions. Reconstruction of the source and of the lens potential for all of these systems shows the method is able, in a realistic scenario, to identify perturbations with masses >=10^7 solar mass when located on the Einstein ring. For positions both inside and outside of the ring, masses of at least 10^9 solar mass are required (...).

21 pages, 15 figures, 4 tables; accepted for publication in MNRAS

References in corpus (68)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Dark Matter Substructure in Galactic Halos
• Where are the missing galactic satellites?
• Observational evidence for self-interacting cold dark matter
• Hierarchical Galaxy Formation
• Cosmological Results from High-z Supernovae
• The Structure of Dark Matter Haloes in Dwarf Galaxies
• Reionization and the abundance of galactic satellites
• The 2dF Galaxy Redshift Survey: The power spectrum and the matter content of the universe
• The tumultuous lives of galactic dwarfs and the missing satellites problem
• H alpha rotation curves of Low Surface Brightness galaxies
• Direct Detection of CDM Substructure
• Formation and evolution of galaxy dark matter halos and their substructure
• The Sloan Lens ACS Survey. III - The Structure and Formation of Early-type Galaxies and their Evolution since z~1
• The Sloan Lens ACS Survey. I. A Large Spectroscopically Selected Sample of Massive Early-Type Lens Galaxies
• Evidence for substructure in lens galaxies?
• Cosmology from Maxima-1, Boomerang and COBE/DMR CMB Observations
• Dark matter substructure and gamma-ray annihilation in the Milky Way halo
• Massive Dark-matter halos and Evolution of Early-type Galaxies to z=1
• Halo Substructure And The Power Spectrum
• Towards a Precise Measurement of Matter Clustering: Lyman-alpha Forest Data at Redshifts 2-4
• Substructure and halo density profiles in a Warm Dark Matter Cosmology
• Repulsive Dark Matter
• Multiple Peaks in the Angular Power Spectrum of the Cosmic Microwave Background: Significance and Consequences for Cosmology
• Testing the Dark Matter Hypothesis with Low Surface Brightness Galaxies and Other Evidence
• Evidence for a non-zero Lambda and a low matter density from a combined analysis of the 2dF Galaxy Redshift Survey and Cosmic Microwave Background Anisotropies
• The Sloan-Lens ACS Survey II: stellar populations and internal structure of early-type lens galaxies
• Uncovering CDM halo substructure with tidal streams
• Multi-frequency analysis of neutralino dark matter annihilations in the Coma cluster
• A Bayesian analysis of regularised source inversions in gravitational lensing
• The dearth of halo dwarf galaxies: is there power on short scales?
• Semi-linear gravitational lens inversion
• Globular clusters, satellite galaxies and stellar haloes from early dark matter peaks
• Tests for Substructure in Gravitational Lenses
• Probing Dark Matter Substructure in Lens Galaxies
• Flux ratios as a probe of dark substructures in quadruple-image gravitational lenses
• Dark matter annihilation in the halo of the Milky Way
• Clumpy Neutralino Dark Matter
• Cuspy Dark-Matter Haloes and the Galaxy
• What Is The BBN Prediction for the Baryon Density and How Reliable Is It?
• High-Resolution Measurements of the Dark Matter Halo of NGC 2976: Evidence for a Shallow Density Profile
• High Resolution Optical Velocity Fields of 11 Low Surface Brightness Galaxies
• Fast calculation of a family of elliptical mass gravitational lens models
• Identifying Lenses with Small-Scale Structure. I. Cusp Lenses
• The surface brightness of dark matter: unique signatures of neutralino annihilation in the Galactic halo
• B1422+231: The influence of mass substructure on strong lensing
• The rotation curves of dwarf galaxies: a problem for Cold Dark Matter?
• Dark matter in Draco and the Local Group: Implications for direct detection experiments
• High resolution imaging of the anomalous flux-ratio gravitational lens system CLASS B2045+265: Dark or luminous satellites?
• Tidal debris of dwarf spheroidals as a probe of structure formation models
• Decomposition of the visible and dark matter in the Einstein ring 0047-2808 by semi-linear inversion
• The stellar velocity dispersion of the lens galaxy in MG2016+112 at z=1.004
• Anomalous Flux Ratios in Gravitational Lenses: For or Against CDM?
• Decaying Cold Dark Matter Model and Small-Scale Power
• Identifying Lenses with Small-Scale Structure. II. Fold Lenses
• The Real Space Power Spectrum of the PSCz Survey from 0.01 to 300 h/Mpc
• The signature of substructure on gravitational lensing in the LCDM cosmological model
• A Limit on the Cosmological Mass Density and Power Spectrum from the Rotation Curves of Low Surface Brightness Galaxies
• A multipole-Taylor expansion for the potential of gravitational lens MG J0414+0534
• What if Dark matter is Bosonic and self-interacting
• Astrometric Perturbations in Substructure Lensing
• A Unifying Framework for Self-consistent Gravitational Lensing and Stellar Dynamics Analyses of Early-Type Galaxies
• The effect of low mass substructures on the Cusp lensing relation
• Strong Gravitational Lens Inversion: A Bayesian Approach
• The Mount Stromlo Abell Cluster Supernova Search
• Constraints on Cosmological Parameters from the Lyman-alpha Forest Power Spectrum and COBE-DMR
• The anatomy of a quadruply imaged gravitational lens system

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