Stuttgart 2012 – wissenschaftliches Programm
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EP: Fachverband Extraterrestrische Physik
EP 10: Poster Numerik
EP 10.1: Poster
Mittwoch, 14. März 2012, 16:30–19:00, Poster.IV
Simulations of Stephan's Quintet and new galactic magnetic field models — Annette Geng1, •Marcus Beck1, Alexander Beck2, Klaus Dolag2, and Peter Nielaba1 — 1University of Konstanz, Department of Physics, Universitätsstr. 10, 78464 Konstanz, Germany — 2University Observatory Munich, Scheinerstr. 1, 81679 Munich, Germany
We present high-resolution simulations of the compact galaxy group "Stephan's Quintet" including radiative cooling, star formation, supernova feedback and magnetic fields. The simulations were performed with the N-body/smoothed particle hydrodynamics (SPH) code Gadget. Magnetohydrodynamics (MHD) is implemented using the SPH method. Based on previous models of the Stephan's Quintet we further investigate the morphology of the colliding system focusing on the temperature, X-ray emission and in particular the magnetic field structure.
In order to improve the parametric models for the magnetic field of galaxies, additional studies are done. Therefore different components of the field are investigated: the coherent large-scale field and the turbulent small-scale field. Future studies are planned concerning isolated and interacting galaxies.