Window Function for Non-Circular Beam CMB Anisotropy Experiment

Abstract

We develop computationally rapid methods to compute the window function for a cosmic microwave background anisotropy experiment with a non-circular beam which scans over large angles on the sky. To concretely illustrate these methods we compute the window function for the Python V experiment which scans over large angles on the sky with an elliptical Gaussian beam.

27 pages, 5 figures

References in corpus (5)

• First Intrinsic Anisotropy Observations with the Cosmic Background Imager
• Binned Cosmic Microwave Background Anisotropy Power Spectra: Peak Location
• Gaussianity of Degree-Scale Cosmic Microwave Background Anisotropy Observations
• A Preliminary Detection of Arcminute Scale Cosmic Microwave Background Anisotropy with the BIMA Array
• Concerning Parameter Estimation Using the Cosmic Microwave Background

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• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Beam Profiles and Window Functions
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• Asymmetric Beams and CMB Statistical Anisotropy
• The Optical Design and Characterization of the Microwave Anisotropy Probe
• Fast Pixel Space Convolution for CMB Surveys with Asymmetric Beams and Complex Scan Strategies: FEBeCoP
• QuickPol: Fast calculation of effective beam matrices for CMB polarization
• Elliptical Beams in CMB Temperature and Polarization Anisotropy Experiments: An Analytic Approach
• CMB power spectrum estimation using noncircular beams
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• Cosmic Microwave Background Anisotropy Measurement From Python V
• Asymfast, a method for convolving maps with asymmetric main beams
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• Data analysis methods for the cosmic microwave background
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• Leakage of power from dipole to higher multipoles due to non-symmetric WMAP beam
• Statistical isotropy violation in WMAP CMB maps resulting from non-circular beams
• Non-Circular beam correction to the CMB power spectrum
• Full-sky correlation functions for CMB experiments with asymmetric window functions
• Bayesian inference on the sphere beyond statistical isotropy
• Estimating SI violation in CMB due to non-circular beam and complex scan in minutes
• Dipole leakage and low CMB multipoles
• Geometrical and physical optics analysis for mm-wavelength refractor telescopes designed to map the cosmic microwave background
• Effect of noncircularity of experimental beam on CMB parameter estimation
• Fast map-based simulations of systematics in CMB surveys including effects of the scanning strategy
• On the linear filters for point source extraction of the Planck mission
• Asymmetry and non-random orientation of the inflight effective beam pattern in the WMAP Data