Astronomy and Astrophysics – Astronomy
Scientific paper
May 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.195..613h&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 195, May 1981, p. 613-623.
Astronomy and Astrophysics
Astronomy
12
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.
Dodd R. D.
Hewett Paul C.
MacGillivray Harvey T.
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