Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.157..319r&link_type=abstract
(Instituto de Astrofisica de Canarias and Comision Interministerial de Ciencia y Tecnologia, Summer School on Evolutionary Pheno
Astronomy and Astrophysics
Astrophysics
Astronomical Photometry, Elliptical Galaxies, Galactic Evolution, Color-Magnitude Diagram, Galactic Clusters
Scientific paper
A direct comparison is conducted between the narrow-band colors of elliptical galaxies in distant clusters and the predictions of such spectral-evolution models as those of Bruzual (1983) and Guideronni and Rocca-Volmerange (1987). The photometric system used imitates the Stromgren passbands at the redshift of the clusters of galaxies in question. The colors of galaxies obtained at z lower than 0.3 are in agreement with such weakly evolving models as that of Bruzual, as well as with an open universe dominated by baryons whose mean density is approximately one-tenth the critical density.
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