
BKIX: New Bounds on Anisotropies of CMB Polarization Rotation and Implications for AxionLike Particles and Primordial Magnetic Fields
The Keck Array and BICEP2 Collaborations
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Angular power spectrum of rotation anisotropies  Figure 1: Angular power spectrum of rotation anisotropies measured from BK14 real data using the standard lensedΛCDM+noise+dust simulation to obtain the power spectrum and uncertainties. In addition to the baseline analysis we also show cases with different choices of CMB multipole range used for the rotation angle reconstruction and a case without inclusion of the dust simulation. We group the multipoles up to 700 in 10 bins. The solid line shows the scaleinvariant spectrum of Eq. (5) with A_{CB} = 1.  PNG  
Histogram of rotation spectrum amplitude  Figure 2: Histogram of rotation spectrum amplitude Â_{CB} from BK14 data. The blue histogram shows the results from the standard ΛCDM simulations while the green histogram shows the POLARBEAR results (POLARBEAR Collaboration 2015, Phys. Rev. D, 92, 12, 123509). The blue vertical line shows the value from the observed spectrum.  PNG 
History
 20170516: Posted BKIX: New Bounds on Anisotropies of CMB Polarization Rotation and Implications for AxionLike Particles and Primordial Magnetic Fields figures.