Showing papers by "A. Iovino published in 1993"
TL;DR: In this paper, the authors study the space distribution of galaxies with a view to determining whether the known morphology-density and luminosity-density relationships are unrelated or are a consequence of different luminosity functions for different morphological types.
Abstract: The aim of this paper is to study the space distribution of galaxies with a view to determining whether the known morphology-density and luminosity-density relationships are unrelated or are a consequence of different luminosity functions for different morphological types. It is found that morphology and luminosity are two independent parameters that affect both the clustering properties of galaxies and their distribution as a function of the local density, morphology playing the predominant role
39 citations
TL;DR: In this paper, the three-and four-point correlation functions are evaluated from the Perseus Pisces galaxy redshift sample, and the relation among these results, biased models of galaxy formation, and observed velocity fields is discussed.
Abstract: The three- and four-point correlation functions are evaluated from the Perseus Pisces galaxy redshift sample. Former results on the two-point function ξ are also reviewed. In the range of distances from 1 h -1 Mpc to 10 h -1 Mpc, three- and four-point functions do not agree with the expressions of the hierarchical clustering model. On the contrary they are steeper and can be fitted by adding terms with a higher power of ξ. Such results from a redshift catalog partially modifies the picture of the large-scale matter distribution obtained from early two-dimensional samples. The relation among these results, biased models of galaxy formation, and observed velocity fields is discussed
6 citations