A Lens Finder Map to Check Claimed High-z Galaxies behind SMACS J0723.3-7327

A Lens Finder Map to Check Claimed High-z Galaxies behind SMACS J0723.3-7327

The first science image released by the James Webb Space Telescope (JWST) reveals numerous galaxies in the distant background of the galaxy cluster SMACS J0723.3-7327. Some have claimed redshifts of up to z ≃ 20, challenging standard cosmological models for structure formation. Here, we present a le...

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Bibliographic Details
Main Authors: Alex Chow, Sung Kei Li, Jeremy Lim, Tom Broadhurst, Man Cheung Alex Li, James Nianias, Jake Summers, Rogier Windhorst
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:The Astrophysical Journal
Subjects:
Strong gravitational lensing
Galaxy clusters
Online Access:https://doi.org/10.3847/1538-4357/ad1246

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