Rhombic cell analysis II. Application to the IRAS/PSCz Catalogue

Abstract

Rhombic cell analysis as outlined in the first paper of the present series is applied to samples of varying depths and liming luminosities of the IRAS/PSCz Catalogue. Numerical indices are introduced to summarize essential information. Because of the discrete nature of the anlaysis and of the space distribution of galaxies, the indices for a given sample must be regarded as each having an irreducible scatter. Despite the scatter, the mean indices show remarkable variations across the samples. The underlying factor for the variations is shown to be the limiting luminosity rather than the sampling depth. As samples of more and more luminous galaxies are considered over a range of some 2 magnitudes (a factor of some 50 in space density), the morpholgy of the filled and empty regions the galaxies define degrades steadily towards insignificance, and the degrading is faster for the filled than the empty region.

11 pages, 6 figures

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• Chandra Observation of Luminous and Ultraluminous X-ray Binaries in M101
• X-ray Source Population in the Elliptical Galaxy NGC 720 with Chandra
• Chandra Observation of the X-Ray Source Population of NGC 6946

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