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Título: | Encounters between spherical galaxies – II. Systems without a dark halo |
Autor: | González-García, A. César CSIC ORCID ; van Albada, T. S. | Palabras clave: | Methods: N-body simulations Galaxies: interactions Galaxies: kinematics and dynamics galaxies: structure-elliptical Incipit Instituto de Ciencias del Patrimonio Institute of Heritage Sciences |
Fecha de publicación: | ago-2005 | Editor: | Royal Astronomical Society | Citación: | Monthly Notices of the Royal Astronomical Society, 361 (3): 1043-1054. Oxford. | Resumen: | [EN]We perform N-body simulations of encounters between spherical systems surrounded by a spherical halo. Following a preceding paper with a similar aim, the initial systems include a spherical Jaffe model for the luminous matter and a Hernquist model for the halo. The merger remnants from this sample are mainly slowly rotating, prolate spheroids with a radially anisotropic velocity distribution. The results are compared with real-life ellipticals and with the models without halo in Paper I. We argue that elliptical galaxies with evidence of dark matter could be formed in the field via a merger of spheroids surrounded by a dark matter halo, while ellipticals with no evidence of dark matter might be formed via a merger of two spheroids in a cluster. | Versión del editor: | http://mnras.oxfordjournals.org/content/361/3/1043.full.pdf | URI: | http://hdl.handle.net/10261/75080 | DOI: | 10.1111/j.1365-2966.2005.09243.x | E-ISSN: | 1365-2966 |
Aparece en las colecciones: | (INCIPIT) Artículos |
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2005_González-García, van Albada - 2005 - Encounters between spherical galaxies - II. Systems with a dark halo.pdf | 5,28 MB | Adobe PDF | Visualizar/Abrir |
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