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Título: | Harassment origin for kinematic substructures in dwarf elliptical galaxies? |
Autor: | González-García, A. César CSIC ORCID ; Aguerri, J.A.L.; Balcells, Marc | Palabras clave: | Galaxies: dwarf Galaxies: interactions Galaxies: kinematics and dynamics Galaxies: structure Methods: N-body simulations |
Fecha de publicación: | 4-dic-2005 | Editor: | EDP Sciences | Citación: | Astronomy & Astrophysics, 444 (3): 803-812. Les Ulis Cedex | Resumen: | [EN]We have run high resolution N-body models simulating the encounter of a dwarf galaxy with a bright elliptical galaxy. The dwarf absorbs orbital angular momentum and shows counter-rotating features in the external regions of the galaxy. To explain the core-envelope kinematic decoupling observed in some dwarf galaxies in high-density environments requires nearly head-on collisions and very little dark matter bound to the dwarf. These kinematic structures appear under rather restrictive conditions. As a consequence, in a cluster like Virgo ~1% of dwarf galaxies may present counter-rotation formed by harassment. | Versión del editor: | http://dx.doi.org/10.1051/0004-6361:20052670 | URI: | http://hdl.handle.net/10261/75047 | DOI: | 10.1051/0004-6361:20052670 | ISSN: | 0004-6361 | E-ISSN: | 1432-0746 |
Aparece en las colecciones: | (INCIPIT) Artículos |
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2005_González-García, Aguerri, Balcells - 2005 - Astronomy & Astrophysics.pdf | 808,4 kB | Adobe PDF | Visualizar/Abrir |
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