101 citations · 176 across the 6 of their papers we have counts for
6 papers
AGN feedback and star formation in ETGs: negative and positive feedback
L. Ciotti, J. P. Ostriker, A. Negri +3
AGN feedback from supermassive black holes (SMBHs) at the center of early type galaxies is commonly invoked as the explanation for the quenching of star formation in these systems.…
Miyamoto-Nagai discs embedded in the Binney logarithmic potential: analytical solution of the two-integrals Jeans equations
Christophe O. Smet, Silvia Posacki, Luca Ciotti
We present the analytical solution of the two-integrals Jeans equations for Miyamoto-Nagai discs embedded in Binney logarithmic dark matter haloes. The equations can be solved (bot…
The stellar initial mass function of early type galaxies from low to high stellar velocity dispersion: homogeneous analysis of ATLAS and Sloan Lens ACS galaxies
Silvia Posacki, Michele Cappellari, Tommaso Treu +2
We present an investigation about the shape of the initial mass function (IMF) of early-type galaxies (ETGs), based on a joint lensing and dynamical analysis, and on stellar popula…
The effects of galaxy shape and rotation on the X-ray haloes of early-type galaxies - II. Numerical simulations
Andrea Negri, Silvia Posacki, Silvia Pellegrini +1
By means of high resolution 2D hydrodynamical simulations, we study the evolution of the hot ISM for a large set of early-type galaxy models, characterized by various degrees of fl…
The Effects of Galaxy Shape and Rotation on the X-ray Haloes of Early-Type Galaxies
Silvia Posacki, Silvia Pellegrini, Luca Ciotti
We present a detailed diagnostic study of the observed temperatures of the hot X-ray coronae of early-type galaxies. By extending the investigation carried out in Pellegrini (2011)…
The effects of flattening and rotation on the temperature of the X-ray halos of elliptical galaxies
Silvia Posacki, Silvia Pellegrini, Luca Ciotti
Elliptical galaxies have hot coronae with X-ray luminosities and mean gas temperatures that span over wide ranges. This variation can be partially due to the energy budget of the h…