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arXiv · 1603.08193

New Constraints On Cosmic Polarization Rotation Including SPTpol B-mode Polarization Observations

W. -P. Pan·S. di Serego Alighieri·W. -T. Ni·L. Xu
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Abstract

We present an update of the cosmic polarization rotation (CPR) constraint from the recent SPTpol measurements of sub-degree B-mode polarization in the cosmic microwave background (CMB) of 100 square degrees of sky. Our previous CPR fluctuation constraint from the joint ACTpol-BICEP2-POLARBEAR polarization data is 23.7 mrad (1.36°). With new SPTpol data included, the CPR fluctuation constraint is updated to 17 mrad (1°) with the scalar to tensor ratio r = - 0.05 +- 0.1

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W. -P. Pan, S. di Serego Alighieri, W. -T. Ni, L. Xu. 2016-03-27. New Constraints On Cosmic Polarization Rotation Including SPTpol B-mode Polarization Observations. https://doi.org/10.1142/9789813203952_0046

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