Simulation of Cosmic Microwave Background Polarization Fields for AMiBA Experiment

Abstract

We have made a topological study of cosmic microwave background (CMB) polarization maps by simulating the AMiBA experiment results. A $\Lambda$CDM CMB sky is adopted to make mock interferometric observations designed for the AMiBA experiment. CMB polarization fields are reconstructed from the AMiBA mock visibility data using the maximum entropy method. We have also considered effects of Galactic foregrounds on the CMB polarization fields. The genus statistic is calculated from the simulated $Q$ and $U$ polarization maps, where $Q$ and $U$ are Stokes parameters. Our study shows that the Galactic foreground emission, even at low Galactic latitude, is expected to have small effects on the CMB polarization field. Increasing survey area and integration time is essential to detect non-Gaussian signals of cosmological origin through genus measurement.

7 pages, 4 figures, Accepted version for publication in the Journal of the Korean Astronomical Society

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Cited by in corpus (4)

• Non-Gaussian Signatures in the Temperature Fluctuation Observed by the Wilkinson Microwave Anisotropy Probe
• On Minkowski Functionals of CMB polarization
• Observational Strategies of CMB Temperature and Polarization Interferometry Experiments
• Primordial non-Gaussian signatures in CMB polarization