The Microwave Background Bispectrum, Paper I: Basic Formalism
David N. Spergel, David M. Goldberg
Abstract
In this paper, we discuss the potential importance of measuring the CMB anisotropy bispectrum. We develop a formalism for computing the bispectrum and for measuring it from microwave background maps. As an example, we compute the bispectrum resulting from the 2nd order Rees-Sciama effect, and find that is undetectable with current and upcoming missions.
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