Table 1.
Summary of posterior mean cosmic birefringence angles, β, as derived for various data combinations.
| Analysis configuration | Fit channels | βreproc [deg] | βofficial [deg] |
|---|---|---|---|
| fsky = 0.90 | fsky = 0.92 | ||
| WMAP | All | 0.81 ± 2.43 | 1.58 ± 2.40 |
| LFI | All | 0.47 ± 1.00 | −0.70 ± 0.95 |
| HFI | All | ⋯ | 0.36 ± 0.11 |
| LFI+WMAP | All | 0.35 ± 0.70 | −0.07 ± 0.64 |
| LFI+HFI | 30 | −0.07 ± 0.75 | ⋯ |
| 44 | 0.10 ± 0.74 | ⋯ | |
| 70 | 0.85 ± 0.44 | ⋯ | |
| LFI | 0.52 ± 0.37 | ⋯ | |
| HFI | 0.22 ± 0.11 | ⋯ | |
| All | 0.24 ± 0.11 | 0.39 ± 0.10 | |
| LFI+HFI+WMAP | WMAP | −0.12 ± 0.46 | ⋯ |
| LFI | 0.53 ± 0.31 | ⋯ | |
| ≤70 GHz | 0.53 ± 0.28 | ⋯ | |
| > 70 GHz | 0.23 ± 0.10 | ⋯ | |
| HFI | 0.26 ± 0.10 | ⋯ | |
| All | 0.26 ± 0.10 | 0.34 ± 0.09 |
Notes. The first column indicates all data sets included in a given analysis, while the second column indicates the frequencies that are actually used to constrain β. The third column lists the values derived in this paper using the reprocessed Planck LFI and WMAP data, and the fourth column lists the corresponding values derived from the official products. All uncertainties indicate 68% errors; for results derived from the reprocessed products, these include both statistical and systematic contributions, while for the results derived from the official products, they only include statistical contributions.
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