Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992scsmp..35..326x&link_type=abstract
Science in China, Series A - Mathematics, Physics, Astronomy and Technological Sciences (ISSN 1001-6511), vol. 35, no. 3, March
Astronomy and Astrophysics
Astronomy
1
Fractals, Galactic Radiation, Infrared Astronomy Satellite, Infrared Sources (Astronomy), Red Shift, Spatial Distribution, Luminous Intensity, Monte Carlo Method, Regression Analysis
Scientific paper
Fractal dimensions of the volume-limited subsamples with various IR luminosities sorted out from samples given by the IRAS galaxy redshift surveys in fields F15 and NGW are calculated. The distribution of IRAS galaxies has multilevel fractal structure. That is, the distribution has fractal structure with a definite fractal dimension D only in certain scale range, and as the scale increases to a certain turning scale rc, the distribution transits to another fractal structure with different D. The fractal dimensions on levels with larger scales are generally larger than that on the levels with smaller scales. Clustering of galaxies is the dominant character on rather small scales, but on larger scales it becomes distribution with voids.
Deng Zu-Gang
Xia Xiao-Yang
Zou Zhen-Long
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