Carlo Nipoti, Pasquale Londrillo, Luca Ciotti
Published 2001-12-06Version 1
We present preliminary results of numerical simulations of dissipationless merging of stellar systems, aimed at exploring the consequences of merging between gas free, spheroidal systems. In particular, we study the dynamical and structural characteristics of hierarchical merging between equal mass stellar systems, and we compare the properties of the end-products with the most important structural and dynamical scaling relations obeyed by spheroids. In the explored hierarchy of four successive mergings we find that the FP tilt is marginally conserved, but both the Faber-Jackson and Kormendy relations are not conserved.
Comments: 2 pages, to appear on ESO Astrophysics Symposia "The Mass of Galaxies at Low and High Redshift", R. Bender and A. Renzini, eds
The Tilt of the Fundamental Plane of Elliptical Galaxies: I. Dynamical and Structural Effects
A Theory of Changes and the Fundamental Plane
The Infrared Diameter -- Velocity Dispersion Relation for Elliptical Galaxies
