Vikram, Vinuet al.Wadadekar, YogeshKembhavi, A.K.2012-03-042012-03-042010-01-01http://hdl.handle.net/11007/308Using archival data from the Hubble Space Telescope, we study the quantitative morphological evolution of spectroscopically confirmed bright galaxies in the core regions of nine clusters ranging in redshift from z = 0.31 to z = 0.84. We use morphological parameters derived from two dimensional bulge-disk decomposition to study the evolution. We find an increase in the mean bulge-to-total luminosity ratio B/T as the Universe evolves. We also find a corresponding increase in the fraction of early type galaxies and in the mean S´ersic index. We discuss these results and their implications to physical mechanisms for evolution of galaxy morphology.enGalaxiesPhotometry — GalaxiesFormation — GalaxiesEvolution — GalaxiesFundamental parametersArticle