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arXiv · astro-ph/0304167

E/B Separation in CMB Interferometry

Chan-Gyung Park·Kin-Wang Ng
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Abstract

We study the problem of separating E and B modes in interferometric observations of the polarization of the cosmic microwave background. The E and B band powers and their mixings are measured from both single-dish and interferometric mock observations using the quadratic estimator of the maximum likelihood analysis. We find that the interferometer can separate E and B modes in a single-pointing measurement and is thus well suited for detecting the faint lensing induced and gravity-wave induced B modes. In mosaicking observation, compared to the single dish, the interferometer is in general more efficient in separating E and B modes, and for high signal-to-noise per pixel it needs about three times fewer pixels to measure extremely blue polarization power spectra.

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Chan-Gyung Park, Kin-Wang Ng. 2004-03-10. E/B Separation in CMB Interferometry. https://doi.org/10.1086/420971

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