publication . Preprint . Conference object . 2013

Flaglets for studying the large-scale structure of the Universe

Jason D. McEwen; Boris Leistedt; Hiranya V. Peiris;
Open Access English
  • Published: 26 Sep 2013
Abstract
Pressing questions in cosmology such as the nature of dark matter and dark energy can be addressed using large galaxy surveys, which measure the positions, properties and redshifts of galaxies in order to map the large-scale structure of the Universe. We review the Fourier-Laguerre transform, a novel transform in 3D spherical coordinates which is based on spherical harmonics combined with damped Laguerre polynomials and appropriate for analysing galaxy surveys. We also recall the construction of flaglets, 3D wavelets obtained through a tiling of the Fourier-Laguerre space, which can be used to extract scale-dependent, spatially localised features on the ball. We...
Subjects
arXiv: Astrophysics::Cosmology and Extragalactic Astrophysics
free text keywords: Computer Science - Information Theory, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Dark energy, Cosmology, Wavelet, Laguerre polynomials, Astrophysics, Physics, Universe, media_common.quotation_subject, media_common, Spherical harmonics, Transform theory, Galaxy, Theoretical physics
Funded by
EC| COSMICDAWN
Project
COSMICDAWN
Understanding the Origin of Cosmic Structure
  • Funder: European Commission (EC)
  • Project Code: 306478
  • Funding stream: FP7 | SP2 | ERC

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