The distribution of faint galaxies near the South Galactic Pole. II

Astronomy and Astrophysics – Astronomy

Scientific paper

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Galactic Clusters, Southern Hemisphere, Spatial Distribution, Astronomical Models, Astronomical Photometry, Computerized Simulation, Red Shift

Scientific paper

The clustering of galaxies in the MacGillivray and Dodd (1980) sample, obtained from Cosmos machine measures, has been investigated using the method of Mead's analysis and dispersion-subdivision curves. The results show two characteristic clustering scale-lengths in the data, with angular sizes of approximately 0.12 and 1.00 deg. At the redshift 0.5 (assuming a deceleration parameter of +1), the corresponding linear dimensions of the features are approximately 3/h and approximately 25/h Mpc respectively. This is interpreted as providing evidence for the second-order clustering of galaxies. Comparison with computer simulations of galaxy fields indicates that this second-order clustering is consistent with a cellular model for superclustering.

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