To be lensed or not to be lensed: on the nature of the alleged high-z lensed quasars J0109-5424 and P170+20

arXiv:2608.25044 · astro-ph.GA · Submitted 2026-08-25 · Read on arXiv

astro-ph.GA

Submitted: 2026-08-25

Updated: 2026-08-25

Comments: Accepted for publication in the Astrophysical Journal, 10 pages, 4 figures

Code: https://github.com/jtschindler/sculptor

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Alignment — 10× in this paper · explained in 1 episode
• Aperture — 4× in this paper · explained in 1 episode
• Calibration — 4× in this paper · explained in 7 episodes
• Gravitational Lensing — 4× in this paper · explained in 2 episodes
• Velocity Dispersion — 3× in this paper · explained in 2 episodes
• Hubble Space Telescope — 2× in this paper
• James Webb Space Telescope — 2× in this paper
• Society of Photo-Optical Instrumentation Engineers — 2× in this paper
• Abundance — 1× in this paper · explained in 1 episode
• Large Binocular Telescope — 1× in this paper

Sources

• The Pan-STARRS1 Surveys
• Homogeneous measurements of proximity zone sizes for 59 quasars in the Epoch of Reionization
• Revealing new high redshift quasar populations through Gaussian mixture model selection

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