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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/59264
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- Discovery of a large-scale wall in the direction of Abell 22
- Pimbblet, Kevin A.; Edge, Alastair C.; Couch, Warrick J.
- 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.
- Publication type
- Journal article
- Monthly Notices of the Royal Astronomical Society Letters, Vol. 357, no. 1 (Feb 2005), pp. L45-L49
- Publication year
- FOR Code(s)
- 0201 Astronomical and Space Sciences
- Abell 22; Galaxy clusters; Large scale structure
- Wiley-Blackwell Publishing
- Publisher URL
- Copyright © 2005 Royal Astronomical Society. The accepted manuscript is reproduced in accordance with the copyright policy of the publisher. The definitive publication is available at www.interscience.wiley.com.
- Full text
- Peer reviewed