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Statistics of Substructures in Dark Matter Haloes
E. Contini, G. De Lucia, S. Borgani
We study the amount and distribution of dark matter substructures within dark matter haloes, using a large set of high-resolution simulations ranging from group size to cluster siz…
The environmental history of group and cluster galaxies in a LambdaCDM Universe
Gabriella De Lucia, Simone Weinmann, Bianca Poggianti +2
We use publicly available galaxy merger trees, obtained applying semi-analytic techniques to a large high resolution cosmological simulation, to study the environmental history of…
What determines the fraction of elliptical galaxies in clusters?
Gabriella De Lucia, Fabio Fontanot, Dave Wilman
We study the correlation between the morphological mix of cluster galaxies and the assembly history of the parent cluster by taking advantage of two independently developed semi-an…
On the Radial Stellar Content of Early-Type Galaxies as a Function of Mass and Environment
F. La Barbera, I. Ferreras, R. R. de Carvalho +4
Using optical-optical and optical-NIR colors, we analyze the radial dependence of age and metallicity inside massive (M* > 10^10.5 MSun), low-redshift (z<0.1), early-type galaxies…
Convergence of Galaxy Properties with Merger Tree Temporal Resolution
Andrew J. Benson, Stefano Borgani, Gabriella De Lucia +2
Dark matter halo merger trees are now routinely extracted from cosmological simulations of structure formation. These trees are frequently used as inputs to semi-analytic models of…
The effect of the environment on the gas kinematics and the structure of distant galaxies
Yara L. Jaffé, Alfonso Aragón-Salamanca, Harald Kuntschner +10
With the aim of distinguishing between possible physical mechanisms acting on galaxies when they fall into clusters, we study the properties of the gas and the stars in a sample of…