Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-09-17
Astronomy and Astrophysics
Astrophysics
4 pages, 5 figures. To appear in the proceedings of "SF2A-2007: Semaine de l'Astrophysique Francaise", (J. Bouvier, A. Chalaba
Scientific paper
We have undertaken a large set of simulations of galaxy interactions and mergers (GalMer Project) in order to study the physical processes related to galaxy encounters. All morphological types along the Hubble sequence are considered in the initial conditions of the two colliding galaxies, with varying bulge-to-disk ratios and gas mass fractions. Different types of orbits are simulated, direct and retrograde, according to the initial relative energy and impact parameter. The self gravity of stars, gas and dark matter is taken into account through a tree-code algorithm, the gas hydrodynamics through SPH. Star formation is included adopting a density-dependent Schmidt law. This wide library of galaxy interactions and mergers, containing, at present, about 900 simulations of major encounters, represents an unique tool to investigate statistically the chemodynamical evolution of interacting systems. In the following, we present and discuss some results obtained exploring the dataset, together with some future perspectives.
Chilingarian Igor
Combes François
Di Matteo Paola
Melchior Anne-Laure
Semelin Benoit
No associations
LandOfFree
Chemodynamical evolution of interacting galaxies: the GalMer view does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Chemodynamical evolution of interacting galaxies: the GalMer view, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemodynamical evolution of interacting galaxies: the GalMer view will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-378373