Yongfeng Wu, Weike Xiao, Rongjun Mu, David Batuski, Andre Khalil

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American Physical Society, Maryland, USA;.
Department of Astronautics Engineering, Harbin Institute of Technology, Harbin, China.
Department of Physics, University of Maine, Orono, USA.
4Department of Mathematics, University of Maine, Orono, USA.
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Abstract: We present the nearest neighbor distance (NND) analysis of SDSS DR5 galaxies. We give NND results for observed, mock and random sample, and discuss the differences. We find the observed sample gives us a significantly stronger aggregation characteristic than the random samples. Moreover, we investigate the direction of NND and find the direction has close relation with the size of the NND for the observed sample.

Keywords: Nearest Neighbor Distance; Nearest Neighbor Vector; Anisotropy; SDSS DR5; Galaxy Distribution

Cite this paper: Wu, Y. , Xiao, W. , Mu, R. , Batuski, D. and Khalil, A. (2013) Nearest neighbor vector analysis of SDSS DR5 galaxy distribution. Natural Science, 5, 47-51. doi: 10.4236/ns.2013.51008.

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