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Sizes and ages of SDSS ellipticals: Comparison with hierarchical galaxy formation models
Francesco Shankar, Federico Marulli, Mariangela Bernardi +3
In a sample of about 45,700 early-type galaxies extracted from SDSS, we find that the shape, normalization, and dispersion around the mean size-stellar mass relation is the same fo…
Colour Gradients and the Colour-Magnitude Relation: Different Properties of Brightest Cluster Galaxies and E/S0 Galaxies in the Sloan Digital Sky Survey
Nathan Roche, Mariangela Bernardi, Joseph Hyde
We examine the colour-magnitude relation of approximately 5000 Brightest Cluster Galaxies (BCGs) in the Sloan Digital Sky Survey, and compare with non-BCG E/S0 galaxies. The colour…
Galaxy luminosities, stellar masses, sizes, velocity dispersions as a function of morphological type
M. Bernardi, F. Shankar, J. B. Hyde +3
We provide fits to the distribution of galaxy luminosity, size, velocity dispersion and stellar mass as a function of concentration index C_r and morphological type in the SDSS. We…
Spectral-based k-corrections and implications for the colour-magnitude relation of E/S0s and its evolution
Nathan Roche, Mariangela Bernardi, Joseph Hyde
We select a sample of 70378 E/S0 (early-type) galaxies at 0<z<0.36 from the Sloan Digital Sky Survey, excluding disk and star-forming galaxies. We estimate g and r magnitudes in th…