Measuring Polarization in the Cosmic Microwave Background

@article{Seljak1997MeasuringPI,
  title={Measuring Polarization in the Cosmic Microwave Background},
  author={Uros Seljak},
  journal={The Astrophysical Journal},
  year={1997},
  volume={482},
  pages={6 - 16}
}
  • U. Seljak
  • Published 20 August 1996
  • Physics
  • The Astrophysical Journal
Polarization induced by cosmological scalar perturbations leads to a typical anisotropy pattern, which can best be analyzed in a Fourier domain. This allows one to distinguish a cosmological signal of polarization unambiguously from other foregrounds and systematics, as well as from polarization induced by nonscalar perturbations. The precision with which polarization and cross-correlation power spectra can be determined is limited by cosmic variance, noise, and foreground residuals. The choice… 
Probing inflation with cosmic microwave background polarization: the weak lensing effect on the covariance of cosmic microwave background spectra
Cosmic microwave background (CMB) anisotropies are modified by the weak lensing effect of intervening large scale structures on the photon path from the last scattering surface to the observer. This
Cosmic confusion: degeneracies among cosmological parameters derived from measurements of microwave background anisotropies
ABSTRA C T In the near future, observations of the cosmic microwave background (CMB) anisotropies will provide accurate determinations of many fundamental cosmological parameters. In this paper, we
Detection of polarization in the cosmic microwave background using DASI
TLDR
The detection of polarization of the CMB with the Degree Angular Scale Interferometer (DASI) is reported, and its level and spatial distribution are in excellent agreement with the predictions of the standard theory.
The information content of cosmic microwave background anisotropies
The cosmic microwave background (CMB) contains perturbations that are close to Gaussian and isotropic. This means that its information content, in the sense of the ability to constrain cosmological
No evidence for dust B-mode decorrelation in Planck data
Constraints on inflationary $B$-modes using Cosmic Microwave Background polarization data commonly rely on either template cleaning or cross-spectra between maps at different frequencies to
Cosmic Microwave Background Polarization Experiments
We discuss the analysis of polarization experiments with particular emphasis on those that measure the Stokes parameters in a ring on the sky. We discuss the ability of these experiments to separate
Correlation Functions of CMB Anisotropy and Polarization
We give a full analysis of the auto- and cross-correlations between the Stokes parameters of the cosmic microwave background. In particular, we derive the windowing function for an antenna with
Approximate likelihood approaches for detecting the influence of primordial gravitational waves in cosmic microwave background polarization
One of the major targets for next-generation cosmic microwave background (CMB) experiments is the detection of the primordial B-mode signal. Planning is under way for Stage-IV experiments that are
Precision tests of parity violation over cosmological distances
Recent measurements of the Cosmic Microwave Background $B$-mode polarization power spectrum by the BICEP2 and POLARBEAR experiments have demonstrated new precision tools for probing fundamental
FIVE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) OBSERVATIONS: BAYESIAN ESTIMATION OF COSMIC MICROWAVE BACKGROUND POLARIZATION MAPS
We describe a sampling method to estimate the polarized cosmic microwave background (CMB) signal from observed maps of the sky. We use a Metropolis-within-Gibbs algorithm to estimate the polarized
...
...

References

SHOWING 1-10 OF 28 REFERENCES
Cosmological-parameter determination with microwave background maps.
TLDR
This work uses a covariance-matrix approach to estimate the precision with which cosmological parameters can be determined by a CMB temperature map as a function of the fraction of sky mapped, the level of pixel noise, and the angular resolution.
Analytic approach to the polarization of the cosmic microwave background in flat and open universes.
We develop an analytic method and approximations to compute the polarization induced in the cosmic microwave background radiation on a wide range of angular scales by anisotropic Thomson scattering
A method for subtracting foregrounds from multifrequency CMB sky maps
An improved method for subtracting contaminants from Cosmic Microwave Background (CMB) sky maps is presented, and used to estimate how well future experiments will be able to recover the primordial
Polarization of the microwave background due to primordial gravitational waves
The contribution of gravitational wave (tensor metric) and energy density (scalar metric) fluctuations to the cosmic microwave background polarization is computed. We find that the tensor
A Measurement of the Anisotropy in the Cosmic Microwave Background Radiation at Degree Angular Scales
We detect anisotropy in celestial radiation at degree angular scales between 26 and 36 GHz. The fluctuations have the spectral index of the cosmic microwave background radiation. The rms amplitude, Δ
Polarization and anisotropy of the microwave sky.
TLDR
This work studies the polarization-polarization and polarization-temperature correlations in standard adiabatic scenarios for structure formation and calculates the expected signal to noise ratio for various measures of the polarization in a hypothetical mapping experiment.
Microwave Background Constraints on Cosmological Parameters
We use a high-accuracy computational code to investigate the precision with which cosmological parameters could be reconstructed by future cosmic microwave background experiments. We focus on the two
A two-fluid approximation for calculating the cosmic microwave background anisotropies
We present a simplified treatment for calculating the cosmic microwave background anisotropy power spectrum in adiabatic models. It consists of solving for the evolution of a two-fluid model until
A Line of sight integration approach to cosmic microwave background anisotropies
We present a new method for calculating linear cosmic microwave background (CMB) anisotropy spectra based on integration over sources along the photon past light cone. In this approach the
Temperature-polarization correlations from tensor fluctuations.
We study the polarization-temperature correlations on the cosmic microwave sky resulting from an initial scale-invariant spectrum of tensor (gravity wave) fluctuations, such as those which might
...
...