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arXiv:astro-ph/0503701 (astro-ph)
[Submitted on 31 Mar 2005]

Title:Are violent events responsible of a Galaxy Morphological loop?

Authors:C. Scannapieco (1), A. V. Smith Castelli (1 and 2), P. B. Tissera (1) ((1) Instituto de Astronomía y Física del Espacio, Buenos Aires, Argentina, (2) Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Argentina)
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Abstract: 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.
Comments: 2 pages. To appear in the proceedings of the IAUC198 "Near-Field Cosmology with Dwarf Elliptical Galaxies", 14 - 18 March 2005, Les Diablerets, Switzerland
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:astro-ph/0503701
  (or arXiv:astro-ph/0503701v1 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/0503701
Related DOI: https://doi.org/10.1017/S174392130500387X

Submission history

From: Analía Smith Castelli [view email]
[v1] Thu, 31 Mar 2005 15:20:50 UTC (17 KB)
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