Number Count-Redshift Relation in Universe Models with Nonzero Cosmological Constant

摘要

The selection of universe models has so far been performed by comparing mainly the theoretical redshift - magnitude relation with the observational data (Sandage 1961, Baum 1962, Tomita and Hayashi 1963 and Solheim 1966), but the evolutionary changes in the absolute luminosity of sources have made their unambiguous selection difficult. Loh and Spillar's (1986a, b) recent photometric data on the number count of galaxies and their redshifts are very appropriate to their selection, because the evolution of galaxies have little influence on the number count - redshift relation. In this Letter we shall extend Loh and Spillar's (1986b) analysis in the case of the cosmological constant lambda = 0 to the case of lambda not = 0 and show whether the Lemaitre models can be consistent with their data or not. (Atomindex citation 18:067292)