The Atacama Cosmology Telescope: Constraints on the anisotropic screening and birefringence effects with DR6

arXiv:2608.27458 · astro-ph.CO · Submitted 2026-08-27 · Read on arXiv

astro-ph.CO

Submitted: 2026-08-27

Updated: 2026-08-27

Code: https://github.com/simonsobs/tempura

Terminology

• Anisotropic Cosmic Birefringence — 12× in this paper · explained in 1 episode
• Consistency — 11× in this paper · explained in 3 episodes
• Bispectrum — 10× in this paper · explained in 3 episodes
• Anisotropy — 7× in this paper · explained in 3 episodes
• Robustness — 5× in this paper · explained in 5 episodes
• Systematic Bias — 4× in this paper · explained in 3 episodes
• Atacama Cosmology Telescope — 3× in this paper
• Trace — 3× in this paper · explained in 2 episodes
• Verification — 3× in this paper · explained in 2 episodes
• ACT Data — 2× in this paper · explained in 1 episode
• Baryonic Feedback — 1× in this paper · explained in 3 episodes
• Gravitational Lensing — 1× in this paper · explained in 2 episodes
• Non-Gaussianity — 1× in this paper · explained in 2 episodes
• SO and South Pole Observatory — 1× in this paper
• alpha — 1× in this paper · explained in 1 episode

Sources

• SPT-3G D1: A Measurement of Secondary Cosmic Microwave Background Anisotropy Power
• GRB 140515A at z=6.33: Constraints on the End of Reionization From a Gamma-ray Burst in a Low Hydrogen Column Density Environment
• Precision Kinematic Sunyaev--Zel'dovich Measurements Across Halo Mass and Redshift with DESI DR2 and ACT DR6: Part II. Bright Galaxy Survey and Emission-Line Galaxies
• PICO: Probe of Inflation and Cosmic Origins
• The Atacama Cosmology Telescope: A search for late-time anisotropic screening of the Cosmic Microwave Background
• Cosmic Birefringence from the Atacama Cosmology Telescope Data Release 6
• CMB lensing power spectrum estimation without instrument noise bias
• Precision Kinematic Sunyaev--Zel'dovich Measurements Across Halo Mass and Redshift with DESI DR2 and ACT DR6: Part I. Luminous Red Galaxies
• An Improved Forecast of Patchy Reionization Reconstruction with CMB

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