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E/B Separation in CMB Interferometry | | Chan-Gyung Park
; Kin-Wang Ng
; | | Date: |
9 Apr 2003 | | Journal: | Astrophys.J. 609 (2004) 15 | | Subject: | astro-ph | | Affiliation: | 2,3) ( Korea Institute for Advanced Study, Institute of Physics, Academia Sinica, Institute of Astronomy and Astrophysics, Academia Sinica | | 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. | | Source: | arXiv, astro-ph/0304167 | | Services: | Forum | Review | PDF | Favorites | |
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