9 papers
Super-massive stars: Radiative transfer
Pau Amaro-Seoane, Rainer Spurzem, Andreas Just
The concept of central super-massive stars (, where is the mass of the super-massive star) embedded in dense stellar systems was su…
Chemodynamical Modeling of Dwarf Galaxy Evolution
P. Berczik, G. Hensler, Ch. Theis +1
We present our recently developed 3-dimensional chemodynamical code for galaxy evolution. It follows the evolution of all components of a galaxy such as dark matter, stars, molecul…
Collisional Stellar Dynamics, Gas Dynamics and Special Purpose Computing
R. Spurzem, J. Makino, T. Fukushige +6
Challenging stellar dynamical problems, such as the study of gravothermal oscillations in star clusters, have in the past initiated the very successful building of GRAPE special pu…
Gas in the central region of AGNs: ISM and supermassive gaseous objects
P. Amaro-Seoane, R. Spurzem
This is a starting point of future work on a more detailed study of early evolutionary phases of galactic nuclei. We put into port the study of the evolution of star accretion onto…
Direct N-body Simulations
R. Spurzem
Special high-accuracy direct force summation N-body algorithms and their relevance for the simulation of the dynamical evolution of star clusters and other gravitating N-body syste…
AHA-GRAPE: Adaptive Hydrodynamic Architecture - GRAvity PipE
T. Kuberka, A. Kugel, R. Maenner +3
In astrophysics numerical star cluster simulations and hydrodynamical methods like SPH require computational performance in the petaflop range. The GRAPE family of ASIC-based accel…