The Bispectrum: From Theory to Observations
نویسندگان
چکیده
منابع مشابه
The Bispectrum: From Theory to Observations
The bispectrum is the lowest-order statistic sensitive to the shape of structures generated by gravitational instability and is a potentially powerful probe of galaxy biasing and the Gaussianity of primordial fluctuations. Although the evolution of the bispectrum is well understood theoretically from non-linear perturbation theory and numerical simulations, applications to galaxy surveys requir...
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We propose a new method for the reconstruction of the Fourier phase of a complex LTI system based on the principal arguments of any pair of horizontal consecutive bispectrum slices of the system output. Since principal bispectrum arguments only are required, there is no need for two-dimensional phase unwrapping. The reconstructed phase diiers from the true one by a constant, integer multiples o...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2000
ISSN: 0004-637X,1538-4357
DOI: 10.1086/317248