Radio Quasars in the Cosmic Dawn: A Spectroscopic Sample from the DESI Survey

arXiv:2609.26931 · astro-ph.GA · Submitted 2026-09-22 · Read on arXiv

astro-ph.GA

Submitted: 2026-09-22

Updated: 2026-09-22

Code: https://github.com/legolason/PyQSOFit

Terminology

• AGN — 8× in this paper · explained in 1 episode
• Core — 3× in this paper · explained in 2 episodes
• National Science Foundation — 3× in this paper
• Science and Technology Facilities Council — 3× in this paper
• Accuracy — 2× in this paper · explained in 1 episode
• Department of Energy — 2× in this paper
• Trace — 2× in this paper · explained in 2 episodes
• AGN Feedback — 1× in this paper · explained in 1 episode
• Adam — 1× in this paper · explained in 2 episodes
• Anti-correlation — 1× in this paper · explained in 3 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Dark Energy Survey Instrument — 1× in this paper
• Inverse Compton (IC) scattering — 1× in this paper · explained in 2 episodes
• Principal Component Analysis — 1× in this paper
• Principal Component Analysis (PCA) — 1× in this paper · explained in 4 episodes
• Selection Bias — 1× in this paper · explained in 4 episodes

Sources

• The LOFAR Two-metre Sky Survey Deep Fields Data Release 1: V. Survey description, source classifications and host galaxy properties
• QuasarNET: Human-level spectral classification and redshifting with Deep Neural Networks
• The Pan-STARRS1 Surveys
• VLT Spectroscopy of the z=4.11 Radio Galaxy TN J1338-1942
• The DESI Experiment Part I: Science,Targeting, and Survey Design
• The DESI Experiment Part II: Instrument Design
• DESI 2024 VII: Cosmological Constraints from the Full-Shape Modeling of Clustering Measurements
• Data Release 1 of the Dark Energy Spectroscopic Instrument
• DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints
• The LOFAR Two-metre Sky Survey: VII. Third Data Release
• Quasars and Galaxy Formation

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