Colloquium on 12 March 2015
13 orders of magnitude: simulating the universe with AMUSE


Title: 13 orders of magnitude: simulating the universe with AMUSE
Speaker: Steven Rieder
Date: Thursday, 12 March 2015
Time: 11:00 - 12:00
Venue: SAAO Auditorium


In this colloquium, I will discuss the Astrophysical Multipurpose Software Environment AMUSE and how to use it for performing and combining N-body simulations on different scales: a large-scale cosmological simulation (CosmoGrid), star cluster simulations and finally simulations of solar systems.
The first part of my talk concerns CosmoGrid, which is a simulation we ran in parallel over multiple supercomputers, including one in Japan and one in the Netherlands. I use this simulation to study the formation and environment of dark matter haloes in voids. In the second part, I will discuss how to combine simulations of star clusters with an evolving environment, such as a dark matter halo or a forming disk galaxy, and study their disruption as a function of environment. Finally, I will discuss the possibility of running simulations of planetary systems embedded in these clusters, effectively running a combined simulation that bridges over 13 orders of magnitude in size.

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