Source REconstruction of Arcs behind Cluster Halos (SourceREACH): A New Source Reconstruction Algorithm Optimized for Giant Arcs and Galaxy Cluster Lenses
arXiv:2511.11952 · doi:10.3847/1538-4357/ae6105
Abstract
We introduce a new algorithm designed for use with extended lensed images, specifically giant arcs lensed by galaxy clusters. These highly magnified images contain important information about both the mass distribution of the cluster and the properties of the background source, but modeling them requires significant computational effort. Our new source reconstruction methodology is designed to be accurate and efficient for high-resolution observations in which point spread function effects are not significant. The overall process deconvolves the observed image by the point spread function, de-lenses the image pixels, and uses interpolation or regression with smoothing to determine the model source. By working with de-lensed points, the method accounts for varying resolution across the source plane. We evaluate the speed and accuracy of different interpolation and regression methods using both mock data and real data for the giant arc in Abell 370. We find that utilizing K Nearest Neighbor Regression results in the best balance of noise smoothing and preservation of compact detail in the source.
References in corpus (60)
- SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
- A Bayesian approach to strong lensing modelling of galaxy clusters
- The Frontier Fields: Survey Design
- The Mass Distribution of SDSS J1004+4112 Revisited
- Shapelets: I. A Method for Image Analysis
- Lenstronomy: multi-purpose gravitational lens modelling software package
- Bayesian Strong Gravitational-Lens Modeling on Adaptive Grids: Objective Detection of Mass Substructure in Galaxies
- A Bayesian analysis of regularised source inversions in gravitational lensing
- Semi-linear gravitational lens inversion
- Mass and magnification maps for the Hubble Space Telescope Frontier Fields clusters: implications for high redshift studies
- Lens models and magnification maps of the six Hubble Frontier Fields clusters
- Precise Strong Lensing Mass Modeling of Four Hubble Frontier Fields Clusters and a Sample of Magnified High-Redshift Galaxies
- Hubble Frontier Fields First Complete Cluster Data: Faint Galaxies at for UV Luminosity Functions and Cosmic Reionization
- Size--luminosity relations and UV luminosity functions at simultaneously derived from the complete Hubble Frontier Fields data
- Hubble Frontier Fields : A High Precision Strong Lensing Analysis of Galaxy Cluster MACSJ0416.1-2403 using ~200 Multiple Images
- Combined reconstruction of weak and strong lensing data with WSLAP
- A Weak-Lensing Mass Reconstruction of the Large-Scale Filament Feeding the Massive Galaxy Cluster MACSJ0717.5+3745
- A refined mass distribution of the cluster MACS J0416.12403 from a new large set of spectroscopic multiply lensed sources
- Non-parametric inversion of strong lensing systems
- Focusing Cosmic Telescopes: Exploring Redshift z~5-6 Galaxies with the Bullet Cluster 1E0657-56
- Abell 370 revisited: refurbished Hubble imaging of the first strong lensing cluster
- Adaptive Semi-linear Inversion of Strong Gravitational Lens Imaging
- Star Formation at z=2.481 in the Lensed Galaxy SDSS J1110+6459: Star Formation down to 30 parsec scales
- Non-parametric mass reconstruction of A1689 from strong lensing data with SLAP
- A Total Molecular Gas Mass Census in z~2-3 Star-forming Galaxies: Low-J CO Excitation Probes of Galaxies' Evolutionary States
- A Free-Form Prediction for the Reappearance of Supernova Refsdal in the Hubble Frontier Fields Cluster MACSJ1149.5+2223
- Data-Driven Reconstruction of Gravitationally Lensed Galaxies using Recurrent Inference Machines
- Non-parametric inversion of gravitational lensing systems with few images using a multi-objective genetic algorithm
- Kinematics, Turbulence and Star Formation of z ~1 Strongly Lensed Galaxies seen with MUSE
- A Free-Form Lensing Grid Solution for A1689 with New Mutiple Images
- JWST's PEARLS: Mothra, a new kaiju star at z=2.091 extremely magnified by MACS0416, and implications for dark matter models
- First JWST observations of a gravitational lens: Mass model from new multiple images with near-infrared observations of SMACS J0723.3-7327
- Statistical and systematic uncertainties in pixel-based source reconstruction algorithms for gravitational lensing
- Star Formation at z=2.481 in the Lensed Galaxy SDSS J1110+6459, I: Lens Modeling and Source Reconstruction
- The Lensed Lyman-Alpha MUSE Arcs Sample (LLAMAS) : I. Characterisation of extended Lyman-alpha haloes and spatial offsets
- Lensed: a code for the forward reconstruction of lenses and sources from strong lensing observations
- On the correlation between dark matter, intracluster light and globular cluster distribution in SMACS0723
- Resolved Molecular Gas and Star Formation Properties of the Strongly Lensed z=2.26 Galaxy SDSS J0901+1814
- A versatile tool for cluster lensing source reconstruction. I. methodology and illustration on sources in the Hubble Frontier Field Cluster MACS J0717.5+3745
- Systematic vs. Statistical Uncertainties in Masses and Magnifications of the Hubble Frontier Fields
- On the use of shapelets in modelling resolved, gravitationally lensed images
- Probability of magnification in the clusters
- Beyond the Ultra-deep Frontier Fields And Legacy Observations (BUFFALO): a high-resolution strong + weak-lensing view of Abell 370
- Sparse Lens Inversion Technique (SLIT): lens and source separability from linear inversion of the source reconstruction problem
- Constraining the multi-scale dark-matter distribution in CASSOWARY 31 with strong gravitational lensing and stellar dynamics
- Exploring Effects on Magnifications due to Line-of-Sight Galaxies in the Hubble Frontier Fields
- Imaging dark matter at the smallest scales with lensed stars
- Hamilton's Object -- a clumpy galaxy straddling the gravitational caustic of a galaxy cluster : Constraints on dark matter clumping
- Strong-lensing source reconstruction with variationally optimised Gaussian processes
- Much ado about no offset -- Characterising the anomalous multiple-image configuration and the model-driven displacement between light and mass in the multi-plane strong lens Abell 3827
- Modeling lens potentials with continuous neural fields in galaxy-scale strong lenses
- Exploiting the diversity of modeling methods to probe systematic biases in strong lensing analyses
- Detecting Low-Mass Perturbers in Cluster Lenses using Curved Arc Bases
- El Gordo needs El Anzuelo: Probing the structure of cluster members with multi-band extended arcs in JWST data
- JWST lens model for A370: A very low dark matter fraction for a brightest cluster galaxy and lensing properties for the Dragon arc
- What Multiple Images Say About the Large-Scale Mass Maps of Galaxy Clusters
- Pixel-level modelling of group-scale strong lens CASSOWARY 19
- Along the Primary Curve: Simultaneous Source and Lens Reconstruction of Bright Arcs in Cluster Lenses
- Testing Lens Models of PLCK G165.7+67.0 Using Lensed SN H0pe
- Constraints from the Giant Arc in Abell 370. A New Framework for Understanding Systematic Errors in Cluster Lens Modeling. IV. Constraints from the Giant Arc in Abell 370