Nearest neighbor vector analysis of SDSS DR5 galaxy distribution

• 作者: Andre Khalil David Batuski Rongjun Mu Weike Xiao Yongfeng Wu
• 来源期刊: 自然科学期刊(英文)
• 学科: 数学
• 关键词: Nearest NEIGHBOR Distance Nearest NEIGHBOR Vector ANISOTROPY SDSS DR5 GALAXY DISTRIBUTION
• 年，卷（期）: zrkxqkyw_2013,（1）
• 页码范围: 47-51
• 页数: 5页
• 分类号: O1

摘要

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.