TY - JOUR
T1 - A new algorithm for the detection of intercluster galaxy filaments using galaxy orientation alignments
AU - Pimbblet, Kevin
PY - 2005
Y1 - 2005
N2 - 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 (a?<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
AB - 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 (a?<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
UR - http://onlinelibrary.wiley.com.ezproxy.lib.monash.edu.au/doi/10.1111/j.1365-2966.2005.08780.x/abstract
U2 - 10.1111/j.1365-2966.2005.08780.x
DO - 10.1111/j.1365-2966.2005.08780.x
M3 - Article
SN - 1365-2966
VL - 358
SP - 256
EP - 262
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 1
ER -