184 citations · 510 across the 13 of their papers we have counts for
15 papers
A simple two-component description of mass segregation for anisotropic globular clusters
Stefano Torniamenti, Giuseppe Bertin, Paolo Bianchini
As a result of the slow action of two-body encounters, globular clusters develop mass segregation and attain a condition of only partial energy equipartition even in their central,…
Gravothermal Catastrophe: the dynamical stability of a fluid model
M. C. Sormani, G. Bertin
A re-investigation of the gravothermal catastrophe is presented. By means of a linear perturbation analysis, we study the dynamical stability of a spherical self-gravitating isothe…
A dynamical study of Galactic globular clusters under different relaxation conditions
A. Zocchi, G. Bertin, A. L. Varri
We perform a systematic combined photometric and kinematic analysis of a sample of globular clusters under different relaxation conditions, based on their core relaxation time (as…
Self-consistent nonspherical isothermal halos embedding zero-thickness disks
N. C. Amorisco, G. Bertin
Disk-halo decompositions of galaxy rotation curves are generally performed in a parametric way. We construct self-consistent models of nonspherical isothermal halos embedding a zer…
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…
The relative concentration of visible and dark matter in clusters of galaxies
C. De Boni, G. Bertin
[Abridged] We consider two clusters (A496 and Coma) that are representative of the two classes of cool-core and non-cool-core clusters. We first refer to a two-component dynamical…