1,721,022 research outputs found
Formation and Disruption of Open Clusters
No full textWe deqal with the evolutionary properties of the galactic open cluster system, showing how relevant has been for the Galactic environment the dissolution of many loose clusters
ISCRA: Italian SuperComputing Resource Allocation ISCRA
No full textR. Capuzzo Dolcetta è membro del "board of referees" per l'assegnazione di tempo di calcolo sulle piattaforme di calcolo del CINECA nell'ISCRA project
A Multifluid Hydrodynamical Radiative Model for the Evolution of a Spherical Protogalaxy
No full textWe present preliminary results of the hydrodynamical simulations of the collapse of a protogalaxy up to star formation
Turbulence in the frame of the evolution of a self-gravitating protocloud
No full textThis paper studies the influence of turbulence generated by the supersonic motion of fragments formed during the collapse of a self-gravitating cloud. The dependence of the results upon the physical parameters needed to describe turbulence is investigated. The results are given for the three values of the gas cloud mass. The presence of turbulence with consequent dissipation is shown to raise appreciably the gas temperature. The results show that the turbulent velocity dispersion is sistematically smaller than the fragments' orbital velocity dispersion
Galactic nuclear activity induced by globular cluster merging
No full textThe interpretation of the difference observed between the radial distribution of globular clusters and that of halo-bulge stars in elliptical galaxies is discussed in terms of evolution of their globular cluster systems. I present a short summary of the evidence that dynamical evolution of globular cluster systems is not only able to explain the flattening of their distribution toward the galactic center, but also it may have played an important role on the primordial activity of the parent galaxy
Metodi numerici dell'astronomia
No full textDidactic notes also available via the web site:
astro1.phys.uniroma1.it/dolcetta/mmas/corso.htm
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