Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...252..435g&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 252, no. 2, Dec. 1991, p. 435-448.
Astronomy and Astrophysics
Astronomy
56
Faint Objects, Galactic Evolution, Luminous Intensity, Red Shift, Sky Surveys (Astronomy), Star Formation, Cosmology, Isophotes
Scientific paper
The constraints given by faint-galaxy counts are examined in the light of the requirements of an Omega0 = 1 universe to scrutinize discrepancies. General assumptions regarding mass conservation are incorporated into the analysis by the authors (1990) which introduces number evolution with normal luminosity evolution. The observations are modeled so that the evolution of surface brightness is considered, and the high-redshift building blocks that merge with the giant galaxies are assumed to have the surface brightness of nearby galaxies. The blocks are found to be visible in the current deep surveys as faint blue objects and can be incorporated into the Omega0 = 1 universe scenario. The model is successfully substantiated with all faint-count contraints and has significance for future study of such effects as the self-similarity of the Schecter mass/luminosity function.
Guiderdoni Bruno
Rocca-Volmerange Brigitte
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