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Publications of the Astronomical Society of Australia Publications of the Astronomical Society of Australia Society
Publications of the Astronomical Society of Australia
RESEARCH ARTICLE

Pulling Out Threads from the Cosmic Tapestry: Defining Filaments of Galaxies


Publications of the Astronomical Society of Australia 22(2) 136 - 143
Published: 16 May 2005

Abstract

Filaments of galaxies are the dominant feature of modern large-scale redshift surveys. They can account for up to perhaps half of the baryonic mass budget of the Universe and their distribution and abundance can help constrain cosmological models. However, there remains no single, definitive way in which to detect, describe, and define what filaments are and their extent. This work examines a number of physically motivated, as well as statistical, methods that can be used to define filaments and examines their relative merits.

Keywords: large-scale structure of Universe — cosmology: observations — methods: observational

https://doi.org/10.1071/AS05006

© ASA 2005

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