Faraday rotation in CMB maps
Abstract
WMAP CMB polarization maps have been used to detect a low signal of Faraday Rotation (FR). If this detection is not interpreted as simple noise, it could be produced:
at the last scattering surface (LSS) (z=1100), being primordial, at Reionization (z=10), in the Milky Way. The second interpretation is favoured here. In this case magnetic fields at Reionization with peak values of the order of 10-8 G should produce this observational FR.- Publication:
-
The Zeldovich Universe: Genesis and Growth of the Cosmic Web
- Pub Date:
- October 2016
- DOI:
- 10.1017/S1743921316010711
- Bibcode:
- 2016IAUS..308..626R
- Keywords:
-
- cosmic microwave background;
- polarization;
- magnetic fields