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The PN.S Elliptical Galaxy Survey: a standard LCDM halo around NGC 4374?
N. R. Napolitano, A. J. Romanowsky, M. Capaccioli +10
As part of our current programme to test LCDM predictions for dark matter (DM) haloes using extended kinematical observations of early-type galaxies, we present a dynamical analysi…
Colour and stellar population gradients in galaxies
C. Tortora, N. R. Napolitano, V. F. Cardone +3
We discuss the colour, age and metallicity gradients in a wide sample of local SDSS early- and late-type galaxies. From the fitting of stellar population models we find that metall…
Stellar population gradients from cosmological simulations: dependence on mass and environment in local galaxies
C. Tortora, A. D. Romeo, N. R. Napolitano +4
The age and metallicity gradients for a sample of group and cluster galaxies from N-body+hydrodynamical simulation are analyzed in terms of galaxy stellar mass. Dwarf galaxies show…
Color and stellar population gradients in galaxies. Correlation with mass
C. Tortora, N. R. Napolitano, V. F. Cardone +3
We analyze the color gradients (CGs) of ~50000 nearby SDSS galaxies. From synthetic spectral models based on a simplified star formation recipe, we derive the mean spectral propert…