53 citations · 90 across the 3 of their papers we have counts for
5 papers · 1 filter
The construction of non-spherical models of quasi-relaxed stellar systems
G. Bertin, A. L. Varri
Spherical models of collisionless but quasi-relaxed stellar systems have long been studied as a natural framework for the description of globular clusters. Here we consider the con…
Self-gravitating accretion discs
G. Lodato
I review recent progresses in the dynamics and the evolution of self-gravitating accretion discs. Accretion discs are a fundamental component of several astrophysical systems on ve…
Slow evolution of elliptical galaxies induced by dynamical friction III. Role of density concentration and pressure anisotropy
S. E. Arena, G. Bertin
In this paper we study the infall, by dynamical friction, of rigid "satellites" taken in a variety of initial configurations and models. We thus measure how dynamical friction depe…
Slow evolution of elliptical galaxies induced by dynamical friction
S. E. Arena, G. Bertin, T. Liseikina +1
Many astrophysical problems, ranging from structure formation in cosmology to dynamics of elliptical galaxies, refer to slow processes of evolution of essentially collisionless sel…
A simple method to construct exact density-potential pairs from a homeoidal expansion
L. Ciotti, G. Bertin
We start from a study of the density-potential relation for classical homeoids in terms of an asymptotic expansion for small deviations from spherical symmetry. We then show that s…