2004/12/03 by Kevin A. Pimbblet, A. C. Edge, Alastair C. Edge +2
Physics and Astronomy · #Abell 2744 #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Brightest cluster galaxy #Cluster (spacecraft) #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy cluster #Observatory #Physics #Protein filament #Redshift #Redshift survey #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1111/j.1745-3933.2005.00015.x
published as Mon.Not.Roy.Astron.Soc. 357 (2005) L45 · 6 pages, 4 figures, accepted for publication in MNRAS letters
arxiv created 2004/12/03 · openalex publication_date 2005/02/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract We report on the discovery of a large-scale wall in the direction of Abell 22. Using photometric and spectroscopic data from the Las Campanas Observatory and Anglo-Australian Telescope Rich Cluster Survey, Abell 22 is found to exhibit a highly unusual and striking redshift distribution. We show, by examining the galaxy distributions both in redshift space and on the colour—magnitude plane, that Abell 22 exhibits a foreground wall-like structure. A search for other galaxies and clusters in the nearby region using the 2dF Galaxy Redshift Survey data base suggests that the wall-like structure is a significant large-scale, non-virialized filament which runs between two other Abell clusters either side of Abell 22. The filament stretches over at least > 40 h−1 Mpc in length and 10 h−1 Mpc in width at the redshift of Abell 22.