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

Details Pulling out Threads from the Cosmic Tapestry: Defining Filaments of Galaxies Pulling out Threads from the Cosmic Tapestry: Defining Filaments of Galaxies

2005-03-14

arxiv.org/abs/astro-ph/0503286v1

Publ.Astron.Soc.Austral. 22 (2005) 136

Astronomy and Astrophysics

Astrophysics

12 pages, 6 figures, accepted for publication in PASA

Scientific paper

10.1071/AS05006

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.

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