Measuring peculiar velocity and tomographic redshift dipole with DESI DR1 catalogs

arXiv:2608.30914 · astro-ph.CO · Submitted 2026-08-31 · Read on arXiv

astro-ph.CO

Submitted: 2026-08-31

Updated: 2026-09-02

Code: https://github.com/cheng-zhao/EZmock

Terminology

• Clustering — 11× in this paper · explained in 2 episodes
• Calibration — 6× in this paper · explained in 7 episodes
• Anisotropy — 4× in this paper · explained in 3 episodes
• Robustness — 3× in this paper · explained in 5 episodes
• Bright Galaxy Sample — 2× in this paper
• Consistency — 2× in this paper · explained in 3 episodes
• Cosmic Microwave Background — 2× in this paper
• Dark Energy Spectroscopic Instrument — 2× in this paper
• Matter Power Spectrum — 2× in this paper · explained in 2 episodes
• Alignment — 1× in this paper · explained in 1 episode
• Bispectrum — 1× in this paper · explained in 3 episodes
• Decoupling — 1× in this paper · explained in 2 episodes
• Fidelity — 1× in this paper · explained in 2 episodes
• Higher-order statistics — 1× in this paper · explained in 2 episodes
• Homogeneity — 1× in this paper · explained in 2 episodes
• Objective Function — 1× in this paper · explained in 2 episodes
• Trace — 1× in this paper · explained in 2 episodes
• Uncertainty Quantification — 1× in this paper · explained in 8 episodes
• Verification — 1× in this paper · explained in 2 episodes

Sources

• A Challenge to the Standard Cosmological Model
• Planck 2018 results. I. Overview and the cosmological legacy of Planck
• Large peculiar motion of the solar system from the dipole anisotropy in sky brightness due to distant radio sources
• Cosmic dipole tensions: confronting the cosmic microwave background with infrared and radio populations of cosmological sources
• The Dark Energy Spectroscopic Instrument (DESI)
• Data Release 1 of the Dark Energy Spectroscopic Instrument
• The DESI Experiment Part I: Science,Targeting, and Survey Design
• DESI 2024 II: Sample Definitions, Characteristics, and Two-point Clustering Statistics
• The DESI Survey Validation: Results from Visual Inspection of Bright Galaxies, Luminous Red Galaxies, and Emission Line Galaxies
• The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: 1000 multi-tracer mock catalogues with redshift evolution and systematics for galaxies and quasars of the final data release
• Planck 2018 results. VI. Cosmological parameters
• A unified pseudo-$C_\ell$ framework
• Clustering properties of the CatWISE2020 quasar catalogue and their impact on the cosmic dipole anomaly

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