Article ID Journal Published Year Pages File Type
1847734 Nuclear Physics B - Proceedings Supplements 2009 6 Pages PDF
Abstract

We discuss the rotation of the linear polarization plane generated by a cosmological pseudoscalar field acting as dark matter. We compare the polarization power spectra obtained in the widely used approximation in which the linear polarization rotation angle is assumed constant along the line of sight and the exact result.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics