Small-Scale Cosmic Microwave Background Polarization from Reionization

Details Small-Scale Cosmic Microwave Background Polarization from Reionization Small-Scale Cosmic Microwave Background Polarization from Reionization

2002-08-28

arxiv.org/abs/astro-ph/0208511v1

New Astron. 8 (2003) 565-573

Astronomy and Astrophysics

Astrophysics

7 pages, 5 figures; Phys. Rev. D. submitted

Scientific paper

10.1016/S1384-1076(03)00050-2

We discuss fluctuations in the cosmic microwave background (CMB) polarization due to scattering from reionized gas at low redshifts. Polarization is produced by re-scattering of the primordial temperature anisotropy quadrupole and of the kinematic quadrupole that arises from gas motion transverse to the line of sight. We show that both effects produce equal E- and B-parity polarization, and are, in general, several orders of magnitude below the dominant polarization contributions at the last scattering surface to E-modes or the gravitational-lensing contribution to B-modes at intermediate redshifts. These effects are also several orders of magnitude below the B polarization due to lensing even after subtraction with higher-order correlations, and are thus too small to constitute a background for searches for the polarization signature of inflationary gravitational waves.

Affiliated with

Also associated with

No associations

Rating

Small-Scale Cosmic Microwave Background Polarization from Reionization does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Small-Scale Cosmic Microwave Background Polarization from Reionization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Small-Scale Cosmic Microwave Background Polarization from Reionization will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-530206