Discovery of a large-scale wall in the direction of Abell 22

Pimbblet, Kevin A., Edge, Alastair C. and Couch, Warrick J. (2005) Discovery of a large-scale wall in the direction of Abell 22. Monthly Notices of The Royal Astronomical Society, 357 1: L45-L49. doi:10.1111/j.1745-3933.2005.00015.x


Author Pimbblet, Kevin A.
Edge, Alastair C.
Couch, Warrick J.
Title Discovery of a large-scale wall in the direction of Abell 22
Journal name Monthly Notices of The Royal Astronomical Society   Check publisher's open access policy
ISSN 0035-8711
1365-2966
Publication date 2005-02
Sub-type Article (original research)
DOI 10.1111/j.1745-3933.2005.00015.x
Open Access Status DOI
Volume 357
Issue 1
Start page L45
End page L49
Total pages 5
Editor A. C. Fabian
Place of publication Oxford, United Kingdom
Publisher Oxford University Press
Collection year 2005
Language eng
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.
Keyword Galaxies: Clusters: Individual: Abell 22
Large-scale Structure Of Universe
Surveys
Galaxies
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

 
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Created: Wed, 15 Aug 2007, 07:05:40 EST