Analysis of the galaxy distribution using multiscale methods

Philippe Querre; Jean-Luc Starck; Vicent J. Martinez

doi:10.1117/12.461111

19 December 2002 Analysis of the Galaxy Distribution using Multiscale Methods

Philippe Querre, Jean-Luc Starck, Vicent J. Martinez

Proceedings Volume 4847, Astronomical Data Analysis II; (2002) https://doi.org/10.1117/12.461111
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

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.

Citation Download Citation

Philippe Querre, Jean-Luc Starck, and Vicent J. Martinez "Analysis of the Galaxy Distribution using Multiscale Methods", Proc. SPIE 4847, Astronomical Data Analysis II, (19 December 2002); https://doi.org/10.1117/12.461111

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