A new algorithm for the detection of intercluster galaxy filaments using galaxy orientation alignments

Pimbblet, K. A. (2005) A new algorithm for the detection of intercluster galaxy filaments using galaxy orientation alignments. Monthly Notices of The Royal Astronomical Society, 358 1: 256-262. doi:10.1111/j.1365-2966.2005.08780.x


Author Pimbblet, K. A.
Title A new algorithm for the detection of intercluster galaxy filaments using galaxy orientation alignments
Journal name Monthly Notices of The Royal Astronomical Society   Check publisher's open access policy
ISSN 0035-8711
1365-2966
Publication date 2005-01-01
Sub-type Article (original research)
DOI 10.1111/j.1365-2966.2005.08780.x
Open Access Status DOI
Volume 358
Issue 1
Start page 256
End page 262
Total pages 7
Editor A C Fabian
Place of publication Oxford, United Kingdom
Publisher Oxford University Press
Language eng
Abstract We present a new algorithm for detecting intercluster galaxy filaments based upon the assumption that the orientations of constituent galaxies along such filaments are non-isotropic. We apply the algorithm to the 2dF Galaxy Redshift Survey catalogue and find that it readily detects many straight filaments between close cluster pairs. At large intercluster separations (> 15 h(-1) Mpc), we find that the detection efficiency falls quickly, as it also does with more complex filament morphologies. We explore the underlying assumptions and suggest that it is only in the case of close cluster pairs that we can expect galaxy orientations to be significantly correlated with filament direction.
Keyword Methods : Statistical
Surveys
Galaxies : Clusters : General
Cosmology : Observations
Large-scale Structure Of Universe
Astronomy & Astrophysics
Methods
Galaxies
Cosmology
Digital Sky Survey
Campanas Redshift Survey
Large-scale Structure
Cold Dark-matter
Early Data Release
2-dimensional Topology
Star-formation
Clusters
Supercluster
Universe
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 16:21:15 EST