Shape Degeneracies: the likely culprit for the differences between lens mass models of galaxy clusters

arXiv:2609.27147 · astro-ph.CO · Submitted 2026-09-22 · Read on arXiv

astro-ph.CO

Submitted: 2026-09-22

Updated: 2026-09-22

Terminology

• Degeneracy — 10× in this paper · explained in 3 episodes
• Core — 3× in this paper · explained in 2 episodes
• Adam — 2× in this paper · explained in 2 episodes
• Generalization — 1× in this paper · explained in 13 episodes
• Gravitational Lensing — 1× in this paper · explained in 2 episodes
• Hybrid Models — 1× in this paper · explained in 2 episodes
• Velocity Dispersion — 1× in this paper · explained in 2 episodes

Sources

• A Catalog of Mass Models for Gravitational Lensing
• Flashlights: More than A Dozen High-Significance Microlensing Events of Extremely Magnified Stars in Galaxies at Redshifts z=0.7-1.5
• Hedorah, the first yellow supergiant Kaiju star candidate at z=3.7 revealed by JWST behind AS1063
• Flashlights: An Off-Caustic Lensed Star at Redshift $z$ = 1.26 in Abell 370

Related papers

• Angular clustering and bias of photometric quasars in the Kilo-Degree Survey Data Release 4
• A Novel kinetic Sunyaev-Zel'dovich Estimator for Electron-Electron Correlations
• Magnetic fields at the dawn of structure formation I. The CARLA J1510+5958 proto-cluster
• Dark Energy Survey Year 6 Results: Weak Lensing and Galaxy Clustering Cosmological Analysis Framework
• Exploring the Impact of Systematic Bias in Type Ia Supernova Cosmology Across Diverse Dark Energy Parametrizations
• Non-Gaussian Galaxy Stochasticity and the Noise-Field Formulation