Optical Depths from the Thermal Sunyaev-Zel'dovich Effect with ACT DR6 and DESI DR1 Spectroscopic Galaxies and Optically-Selected Clusters

arXiv:2609.08939 · astro-ph.CO · Submitted 2026-09-08 · Read on arXiv

astro-ph.CO

Submitted: 2026-09-08

Updated: 2026-10-09

Comments: 32 pages, 22 figures, submitted to Physical Review D

Code: https://github.com/chadpopik/CAPPIBARAS

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

Terminology

• Aperture — 2× in this paper · explained in 1 episode
• Atacama Cosmology Telescope DR6 — 1× in this paper
• Core — 1× in this paper · explained in 2 episodes
• DESI DR1 Bright Galaxy Sample — 1× in this paper

Sources

• The DESI Experiment Part II: Instrument Design
• The DESI Experiment Part I: Science,Targeting, and Survey Design
• Future constraints on halo thermodynamics from combined Sunyaev-Zel'dovich measurements
• Astrophysics with the Spatially and Spectrally Resolved Sunyaev-Zeldovich Effects: A Millimetre/Submillimetre Probe of the Warm and Hot Universe
• Evidence of Galaxy Cluster Motions with the Kinematic Sunyaev-Zel'dovich Effect
• Dark Energy Constraints from Galaxy Cluster Peculiar Velocities
• Constraints on gravity and dark energy from the pairwise kinematic Sunyaev-Zeldovich effect
• Constraints on massive neutrinos from the pairwise kinematic Sunyaev-Zel'dovich effect
• The Atacama Cosmology Telescope: The Receiver and Instrumentation
• The 10 Meter South Pole Telescope
• The SPT-Deep Cluster Catalog: Sunyaev-Zel'dovich Selected Clusters from Combined SPT-3G and SPTpol Measurements over 100 Square Degrees
• The Atacama Cosmology Telescope: DR6 Sunyaev-Zel'dovich Selected Galaxy Clusters Catalog
• The Atacama Cosmology Telescope: Modeling the Gas Thermodynamics in BOSS CMASS galaxies from Kinematic and Thermal Sunyaev-Zel'dovich Measurements
• The Atacama Cosmology Telescope: Combined kinematic and thermal Sunyaev-Zel'dovich measurements from BOSS CMASS and LOWZ halos
• The Atacama Cosmology Telescope: Probing the Baryon Content of SDSS DR15 Galaxies with the Thermal and Kinematic Sunyaev-Zel'dovich Effects
• The Atacama Cosmology Telescope: Detection of the Pairwise Kinematic Sunyaev-Zel'dovich Effect with SDSS DR15 Galaxies
• The Thermal Sunyaev-Zel'dovich Effect from Massive, Quiescent 0.5 $\leq$ z $\leq$ 1.5 Galaxies
• Evidence of Extended Dust and Feedback around z$\approx$1 Quiescent Galaxies via Millimeter Observations
• Distinguishing AGN Feedback Models with the Thermal Sunyaev-Zel'dovich Effect
• Evidence for large baryonic feedback at low and intermediate redshifts from kinematic Sunyaev-Zel'dovich observations with ACT and DESI photometric galaxies

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