Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-09-05
Astronomy and Astrophysics
Astrophysics
To be published in the proceedings of the "Galactic and Stellar Dynamics 2008" conference. 4 pages
Scientific paper
10.1002/asna.200811043
Numerical simulations of galaxy mergers are a powerful tool to study these fundamental events in the hierarchical built-up of galaxies. Recent progress have been made owing to improved modeling, increased resolution and large statistical samples. We present here the highest-resolution models of mergers performed so far. The formation of a variety of substructures ranging from kinematically decoupled cores to globular-like clusters is directly resolved. In a resolution study, we show that the large-scale structure of elliptical-like merger remnants can be affected by the resolution, and a too modest resolution may affect the numerical predictions on the properties of major merger remnants: understanding precisely which kind of event or succession of events has formed the various types of elliptical galaxies remains an open challenge.
Bois Maxime
Bournaud Frederic
Duc Pierre-Alain
Emsellem Eric
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