Percolation Properties of Nearby Large-Scale Structures: Every Galaxy has a Neighbour

2004/11/16 by Anthony Fairall, D. Turner, Fairall, Anthony +11
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/0411437

9 pages, 4 figures; to appear in `Nearby Large-Scale Structures and the Zone of Avoidance', eds. A.P. Fairall and P.A. Woudt, ASP Conf. Series

arxiv created 2004/11/16 · arxiv updated 2009/12/01

Abstract

The distribution of nearby (cz < 7500 km/s) galaxies has been explored by minimal spanning trees; allowance has been made for the drastic decrease of data with distance. The investigation finds that all galaxies are members of irregular elongated large-scale structures; there are no `field galaxies'. Based on our local large-scale structure, every galaxy appears to have a neighbouring galaxy within <100 km/s (1.4 h₇₀^-1 Mpc) of redshift space, and thereby all galaxies are found to lie in filaments or tree configurations. Every large-scale structure appears to have a neighbouring large-scale structure within <700 km/s (10 h₇₀^-1 Mpc), such that large-scale structures interconnect to form a continuous labyrinth.

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