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The evolution of galaxy sizes
Bianca M. Poggianti, Rosa Calvi, Daniele Bindoni +10
We present a study of galaxy sizes in the local Universe as a function of galaxy environment, comparing clusters and the general field. Galaxies with radii and masses comparable to…
Superdense galaxies and the mass-size relation at low redshift
Bianca Poggianti, Rosa Calvi, Daniele Bindoni +10
We search for massive and compact galaxies (superdense galaxies, hereafter SDGs) at z=0.03-0.11 in the Padova-Millennium Galaxy and Group Catalogue, a spectroscopically complete sa…
On the scatter in the relation between stellar mass and halo mass: random or halo formation time dependent?
Lan Wang, Gabriella De Lucia, Simone M. Weinmann
The empirical HOD model of Wang et al. 2006 fits, by construction, both the stellar mass function and correlation function of galaxies in the local Universe. In contrast, the semi-…
On the stellar populations of massive galaxies
Gabriella De Lucia, Stefano Borgani
In this Letter, we analyse the predicted physical properties of massive galaxies, in the framework of recent semi-analytic models of galaxy formation. All models considered account…
The VIMOS Public Extragalactic Redshift Survey (VIPERS): spectral classification through Principal Component Analysis
A. Marchetti, B. R. Granett, L. Guzzo +51
We develop a Principal Component Analysis aimed at classifying a sub-set of 27,350 spectra of galaxies in the range 0.4 < z < 1.0 collected by the VIMOS Public Extragalactic Redshi…
Dark satellites and the morphology of dwarf galaxies
Amina Helmi, L. V. Sales, E. Starkenburg +4
One of the strongest predictions of the LambdaCDM cosmological model is the presence of dark satellites orbiting all types of galaxies. We focus here on the dynamical effects of su…