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On Decoupling the Integrals of Cosmological Perturbation Theory
Zachary Slepian
Perturbation theory (PT) is often used to model statistical observables capturing the translation and rotation-invariant information in cosmological density fields. PT produces hig…
A Physical Picture of Bispectrum Baryon Acoustic Oscillations in the Interferometric Basis
Hillary L. Child, Zachary Slepian, Masahiro Takada
We present a picture of the matter bispectrum in a novel "interferometric" basis designed to highlight interference of the baryon acoustic oscillations (BAO) in the power spectra c…
Bispectrum as Baryon Acoustic Oscillation Interferometer
Hillary L. Child, Masahiro Takada, Takahiro Nishimichi +4
The galaxy bispectrum, measuring excess clustering of galaxy triplets, offers a probe of dark energy via baryon acoustic oscillations (BAOs). However up to now it has been severely…
Overview of the DESI Legacy Imaging Surveys
Arjun Dey, David J. Schlegel, Dustin Lang +157
The DESI Legacy Imaging Surveys are a combination of three public projects (the Dark Energy Camera Legacy Survey, the Beijing-Arizona Sky Survey, and the Mayall z-band Legacy Surve…