Globular Cluster System erosion in elliptical galaxies (2009)
Capuzzo-Dolcetta, Roberto, Mastrobuono-Battisti, Alessandra
In this paper we analyze data of 8 elliptical galaxies in order to study the difference between their globular cluster systems (GCSs) radial distributions and those of the galactic stellar component....
A Counterpart to the Radial Orbit Instability in Triaxial Stellar Systems (2009)
Antonini, Fabio, Capuzzo-Dolcetta, Roberto, Merritt, David
Self-consistent solutions for triaxial mass models are highly non-unique. In general, some of these solutions might be dynamically unstable, making them inappropriate as descriptions of steady-state...
High performance computing for classic gravitational N-body systems (2009)
The role of gravity is crucial in astrophysics. It determines the evolution of any system, over an enormous range of time and space scales. Astronomical stellar systems as composed by N interacting...
A Counterpart to the radial-orbit instability in triaxial stellar systems (2009)
Antonini, Fabio, Capuzzo-Dolcetta, Roberto, Merritt, David
Also archived in: arXiv:0901.4485 v1 Jan 28, 2009
An Instability in triaxial stellar systems (2008)
Antonini, Fabio, Capuzzo-Dolcetta, Roberto, Merritt, David
Also archived in arXiv:0809.0161 v1 Sep 1, 2008. Publishers version can be found here: http://www3.interscience.wiley.com/journal/121536915/issue
An Instability in Triaxial Stellar Systems (2008)
Antonini, Fabio, Capuzzo-Dolcetta, Roberto, Merritt, David
The radial-orbit instability is a collective phenomenon that has heretofore only been observed in spherical systems. We find that this instability occurs also in triaxial systems, as we checked by...
Consequences of Triaxiality for Gravitational Wave Recoil of black holes (2007)
Vicari, Alessandro, Capuzzo-Dolcetta, Roberto, Merritt, David
Also archived in: arXiv:astro-ph/0612073 v2 Mar 22 2007
Consequences of Triaxiality for Gravitational Wave Recoil of black holes (2006)
Vicari, Alessandro, Capuzzo-Dolcetta, Roberto, Merritt, David
Coalescing binary black holes experience a ``kick'' due to anisotropic emission of gravitational waves with an amplitude as great as 200$ km/s. We examine the orbital evolution of black holes that...
Parallelization of a Tree-Code for the Simulation of Self--Gravitating Astrophysical Systems (1998)
Capuzzo-Dolcetta, Roberto, Miocchi, Paolo
We present preliminary results on the parallelization of a Tree-Code for evaluating gravitational forces in N-body astrophysical systems. Our HPF/CRAFT implementation on a CRAY T3E machine attained...
Gravitational waves from collapsing globular cluster systems (1998)
Capuzzo-Dolcetta, Roberto, Miocchi, Paolo
The evolution of globular cluster systems in some galaxies can be cause of merging of globulars in the very central regions. This high stellar density favours the growth of a central nucleus via...
Can Galactic Nuclei Activity be Explained by Globular Cluster Mass Accretion? (1996)
Globular clusters can decay to the center of their mother galaxy carrying a quantity of mass sufficient to sustain the gravitational activity of a small pre-existing nucleus and to accrete it in a...