A peculiarity of astrophysics with respect to terrestrial physics is the unavoidable presence of self-gravity. This makes astrophysical simulations very hard to be done, because self-gravity induces, by mean of the fine grain structure superposed to the coarse grain, a multitude of space and time scales. In this report I give (i) a brief overview of the simulation problems to be faced in astrophysics and cosmology, with particular emphasis on the classic gravitational N-body problem and (ii) some results on the evolution of a typical example of intermediate N-body system, like a globular cluster moving in an external galactic field.
A peculiarity of astrophysics with respect to terrestrial physics is the unavoidable presence of self-gravity. This makes astrophysical simulations very hard to be done, because self-gravity induces, by mean of the fine grain structure superposed to the coarse grain, a multitude of space and time scales. In this report I give (i) a brief overview of the simulation problems to be faced in astrophysics and cosmology, with particular emphasis on the classic gravitational N-body problem and (ii) some results on the evolution of a typical example of intermediate N-body system, like a globular cluster moving in an external galactic field. © 2005 Elsevier B.V. All rights reserved.
High performance computing for self-gravitating systems / CAPUZZO DOLCETTA, Roberto Angelo. - In: COMPUTER PHYSICS COMMUNICATIONS. - ISSN 0010-4655. - STAMPA. - 169:1-3(2005), pp. 365-369. (Intervento presentato al convegno Proceedings of the Europhysics Conference on Computational Physics 2004 CCP 2004 tenutosi a Genova, Italy nel 1 September 2004 through 4 September 2004) [10.1016/j.cpc.2005.03.081].
High performance computing for self-gravitating systems
CAPUZZO DOLCETTA, Roberto Angelo
2005
Abstract
A peculiarity of astrophysics with respect to terrestrial physics is the unavoidable presence of self-gravity. This makes astrophysical simulations very hard to be done, because self-gravity induces, by mean of the fine grain structure superposed to the coarse grain, a multitude of space and time scales. In this report I give (i) a brief overview of the simulation problems to be faced in astrophysics and cosmology, with particular emphasis on the classic gravitational N-body problem and (ii) some results on the evolution of a typical example of intermediate N-body system, like a globular cluster moving in an external galactic field.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
