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arXiv 0910.0806astro-ph.CO
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大尺度结构聚类的本质

Nature of Clustering of Large Scale Structures

Jaswant K. Yadav

摘要:

本论文主要研究利用多重分形分析来刻画点和星系的分布。在这种尝试中,主要的重点是计算不同尺度上的点的分布的Minkowski-Bouligand分形维数(Dq),从而找到分布的均匀性的尺度。研究了有限样本大小和分布中的聚类对Dq的影响。本文用Sloan数字巡天观测资料的多重分形分析验证了宇宙大尺度物质分布均匀的假设。

英文摘要:

This thesis focuses on characterizing the distribution of points and galaxies using multifractal analysis. In this attempt the main emphasis is on calculating the Minkowski-Bouligand fractal dimension (Dq) of the distribution of points over different scales and hence finding the scale of homogeneity of the distribution. Effects, of finite size of the sample and clustering in the distribution, on the Dq have been studied in detail. The assumption that the large scale distribution of matter in the Universe is homogeneous has been verified with multifractal analysis of the data from Sloan Digital Sky Survey.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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