Mapping galaxy encounters in numerical simulations: the spatial extent of induced star formation

Numerical Simulations of Galaxy Formation: Cooling, Heating, Star Formation

Formation of luminous matter in the Universe is a complicated process, which includes many processes and components. It is the vastly different scales involved in the process (from star formation on few parsec scales to galaxy clusters and superclusters on megaparsecs scales) and numerous ill-understood processes, which make the whole field a maze of unsolved, but exciting problems. We present ...

Numerical simulations of protostellar encounters I . Star - disc encounters

It appears that most stars are born in clusters, and that at birth most stars have circumstellar discs which are comparable in size to the separations between the stars. Interactions between neighbouring stars and discs are therefore likely to play a key rôle in determining disc lifetimes, stellar masses, and the separations and eccentricities of binary orbits. Such interactions may also cause ...

Numerical Simulations of Galaxy Formation

An overview over the current status of modeling galaxies by means of numerical simulations is given. After a short description of how galaxies form in hierarchically clustering scenarios, success and failures of current simulations are demonstrated using three different applications: the morphology of present day galaxies; the appearance of high redshift galaxies; and the nature of the Ly-α for...

High - resolution numerical simulations for galaxy formation

Understanding of the structure evolution in the Universe has been greatly advanced with a rapid progress in high-resolution cosmological simulations. In this contribution, we report a new set of cosmological simulations with 512 (∼ 1.4 × 10) particles in a simulation box of 100hMpc. With this unprecedented resolution, we have successfully overcomed the over-merging problem while retaining a cos...

Numerical approaches to star formation and SuperNovae energy feedback in simulations of galaxy clusters