Testing Offsets Between Cluster-Scale Halos and BCGs in Strong Lensing Models Using the Jackknife Method

arXiv:2609.38310 · astro-ph.CO, astro-ph.GA · Submitted 2026-09-29 · Read on arXiv

astro-ph.CO, astro-ph.GA

Submitted: 2026-09-29

Updated: 2026-10-01

Project page: https://niriss.github.io/lensing.html

Terminology

• Regularization — 53× in this paper · explained in 3 episodes
• Accuracy — 17× in this paper · explained in 1 episode
• Core — 6× in this paper · explained in 2 episodes
• Gravitational Lensing — 2× in this paper · explained in 2 episodes
• Objective Function — 2× in this paper · explained in 2 episodes
• Academia Sinica Institute of Astronomy and Astrophysics — 1× in this paper
• Fisher Information — 1× in this paper · explained in 3 episodes
• Microlensing — 1× in this paper · explained in 2 episodes
• National Research Foundation — 1× in this paper
• Robustness — 1× in this paper · explained in 5 episodes

Sources

• Where is the matter in the Merging Cluster Abell 2218?
• A Catalog of Mass Models for Gravitational Lensing
• First Statistical Study of Over 100 Magnified Stellar Events at Redshift $z \approx 0.725$ with JWST
• A Consistent Implementation of Cluster Strong Lensing in Cosmological Simulation Light Cones
• Shape Degeneracies: the likely culprit for the differences between lens mass models of galaxy clusters

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