Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994cha%26a..18..257l&link_type=abstract
Chinese Astronomy and Astrophysics, Volume 18, Issue 3, p. 257-265.
Astronomy and Astrophysics
Astrophysics
Cosmology, Galaxies, Large-Scale Structure, Iras Galaxies
Scientific paper
We discuss relation between two-point correlation function and correlation fractal dimension and use the IRAS galaxy redshift survey as illustration. The large-scale (>~ 15-20h-1Mpc) distribution of the IRAS galaxies can neither be described by a simple power-law two-point correlation function, nor a simple fractal. It can be better represented by a multi-level fractal. One of the characteristics of multi-level fractal is the existence of typical scales, at which fractal level changes. Un-normalized count can be used to determine the typical scales effectively and precisely. The existence of typical scales is a challenge to the current models of structure formation.
Deng Zu-Gang
Liu Bin
Liu Yong-Zhen
Xia Xiao-Yang
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