Exotic Image Formation in Strong Gravitational Lensing by Clusters of Galaxies -- III: Statistics with HUDF

Abstract

We study the image formation near point singularities (swallowtail and umbilics) in the simulated strongly lensed images of Hubble Ultra Deep Field (HUDF) by the Hubble Frontier Fields (HFF) clusters. In this work, we only consider nearly half of the brightest (a total of 5271) sources in the HUDF region. For every HFF cluster, we constructed 11 realizations of strongly lensed HUDF with an arbitrary translation of the cluster centre within the central region of HUDF and an arbitrary rotation. In each of these realizations, we visually identify the characteristic/exotic image formation corresponding to the different point singularities. We find that our current results are consistent with our earlier results based on different approaches. We also study time delay in these exotic image formations and compare it with typical five-image geometries. We find that the typical time delay in exotic image formations is an order of magnitude smaller than the typical time delay in a generic five-image geometry.

9 pages, 5 figures. Suppl. material available on request from authors. Comments welcome

References in corpus (28)

• The Cosmic Evolution Survey (COSMOS) -- Overview
• The James Webb Space Telescope
• UV Luminosity Functions at redshifts z~4 to z~10: 10000 Galaxies from HST Legacy Fields
• The Hubble Ultra Deep Field
• A Bayesian approach to strong lensing modelling of galaxy clusters
• Weak Gravitational Lensing with COSMOS: Galaxy Selection and Shape Measurements
• Multiple Images of a Highly Magnified Supernova Formed by an Early-Type Cluster Galaxy Lens
• Cluster Lenses
• 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
• The Halos of Satellite Galaxies: the Companion of the Massive Elliptical Lens SL2S J08544-0121
• UVUDF: Ultraviolet Through Near-infrared Catalog and Photometric Redshifts of Galaxies in the Hubble Ultra Deep Field
• The Wide Field Infrared Survey Telescope: 100 Hubbles for the 2020s
• New redshift z ~ 9 galaxies in the Hubble Frontier Fields: Implications for early evolution of the UV luminosity density
• Hubble Frontier Fields : A High Precision Strong Lensing Analysis of Galaxy Cluster MACSJ0416.1-2403 using ~200 Multiple Images
• Intracluster Light at the Frontier II: The Frontier Fields Clusters
• Strong Lensing in Abell 1703: Constraints on the Slope of the Inner Dark Matter Distribution
• The UDF05 Follow-up of the HUDF: I. The Faint-End Slope of the Lyman-Break Galaxy Population at z~5
• Discovery of the largest known lensed images formed by a critically convergent lensing cluster
• Fundamental physics with the Hubble Frontier Fields: constraining Dark Matter models with the abundance of extremely faint and distant galaxies
• Using Convolutional Neural Networks to identify Gravitational Lenses in Astronomical images
• UVUDF: UV Luminosity Functions at the cosmic high-noon
• A Free-Form Lensing Grid Solution for A1689 with New Mutiple Images
• Detecting Dark Matter Cores in Galaxy Clusters with Strong Lensing
• Mass profile decomposition of the Frontier Fields cluster MACS J0416-02403. Insights on the Dark-Matter inner profile
• Systematic vs. Statistical Uncertainties in Masses and Magnifications of the Hubble Frontier Fields
• Probability of magnification in the $\text{Hubble Frontier Fields}$ clusters
• Lensing signals in the Hubble Ultra-Deep Field using all 2nd order shape deformations