Number count-redshift relation in universe models with nonzero cosmological constant

Details Number count-redshift relation in universe models with nonzero cosmological constant Number count-redshift relation in universe models with nonzero cosmological constant

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986stin...8812435t&link_type=abstract

Unknown

Mathematics

Logic

Cosmology, Galaxies, Models, Red Shift, Universe, Galactic Evolution, Luminosity, Photometry, Stellar Evolution, Stellar Magnitude

Scientific paper

The selection of universe models has so far been performed by comparing mainly the theoretical redshift - magnitude relation with observational data, but the evolutionary changes in the absolute luminosity of sources have made their unambiguous selection difficult. 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. The analysis is extended 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.

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