Version 1.43 of the Rotation Field of the Cosmic Microwave Background dataset is a validation release confirming the large-scale parity anisotropy in the CMB polarization rotation field. The dataset, authored by Amy Condit and updated in 2026, includes a locked rotation map, a polarization mask, and results from 165,000 null simulations.
Use Cases
- Validate the statistical significance of parity anisotropy based on the reported 4.38σ one-sided significance.
- Assess calibration independence of cosmic birefringence detection based on the described MASTER coupling matrix validation.
- Reproduce the phase model validation using the provided null simulation ensemble and run-all notebook.
Strengths
- Includes results from 165,000 masked null simulations for robust statistical validation.
- Demonstrates calibration independence with a simulation-derived MASTER coupling matrix.
- Provides a full reproducibility archive with SHA-256 verified files.
Limitations
- Description metadata is limited; actual data quality requires manual inspection after download.
- Column-level documentation is absent; field semantics must be inferred after download.
Provenance
- Source
- Condit, Amy; 22 Blue CMB Birefringence & Standing-Wave Rotation Field
- Collection Method
- Analysis of Planck 2018 CMB polarization data, validated via simulation.
- Freshness
- Last updated 2026-06-18 00:49:58; freshness should be verified.