We use cosmological SPH simulations to investigate the effects of mergers and interactions on the formation of the bulge and disc components of galactic systems. We find that secular evolution during mergers seems to be a key process in the formation of stable disc-bulge systems with observational counterparts and contributes to establish the fundamental relations observed in galaxies. Our findings suggest that the secular evolution phase couples the formation mechanisms of the bulge and disc components. According to our results, depending on the particular stability properties and merger parameters, violents events could drive a morphological loop in which the outcome could be a disc or a spheroid.
General information
Issue date:2005
Document language:English
Journal:Proceedings of the International Astronomical Union; vol. 1, no. C198
Event:IAU Colloquium 198 (Les Diablerets, Switzerland, March 14, 2005)
Origin:Facultad de Ciencias Astronómicas y Geofísicas
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