Friday 29 May 2009, 15:30h, at Nikhef in room H331
Speaker: Vincent Icke, Sterrewacht Leiden
Title:
Cosmic Radiation Hydrodynamics
(something to do while worrying about dark matter)
Abstract:
The overwhelming majority of ordinary cosmic matter is in the form of gas and radiation. The interaction between these, mediated by gravity and particle processes, dominates the evolution of astrophysical objects smaller than galaxies. Thus, radiation hydrodynamics is essential for understanding that evolution. I will report on recent progress in incorporating radiative transfer in existing cosmic hydrodynamics codes, in particular on the Voronoi-Delaunay transport method we have called SimpleX. Sample simulations of the re-ionization of the early Universe and of the flow in eccentric binary stars will be shown.