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Proceedings Paper

Analysis of the galaxy distribution using multiscale methods
Author(s): Philippe Querre; Jean-Luc Starck; Vicent J. Martinez
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Paper Abstract

Galaxies are arranged in interconnected walls and filaments forming a cosmic web encompassing huge, nearly empty, regions between the structures. Many statistical methods have been proposed in the past in order to describe the galaxy distribution and discriminate the different cosmological models. We present in this paper preliminary results relative to the use of new statistical tools using the 3D a trous algorithm, the 3D ridgelet transform and the 3D beamlet transform. We show that such multiscale methods produce a new way to measure in a coherent and statistically reliable way the degree of clustering, filamentarity, sheetedness, and voidedness of a dataset.

Paper Details

Date Published: 19 December 2002
PDF: 12 pages
Proc. SPIE 4847, Astronomical Data Analysis II, (19 December 2002); doi: 10.1117/12.461111
Show Author Affiliations
Philippe Querre, CEA Saclay (France)
Jean-Luc Starck, CEA Saclay (France)
Vicent J. Martinez, Observatori Astronomic/Univ. de Valencia (Spain)

Published in SPIE Proceedings Vol. 4847:
Astronomical Data Analysis II
Jean-Luc Starck; Fionn D. Murtagh, Editor(s)

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