Regular and chaotic motion in elliptical galaxies

Here I review recent work, by other authors and by myself, on some particular topics related to the regular and chaotic motion in elliptical galaxies. I show that it is quite possible to build highly stable triaxial stellar systems that include large fractions of chaotic orbits and that partially an...

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Autor principal: Muzzio, Juan Carlos
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2007
Materias:
Astronomía
Galactic Dynamics
Regular and Chaotic Motion
Elliptical Galaxies
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/129374
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-129374
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Astronomía
Galactic Dynamics
Regular and Chaotic Motion
Elliptical Galaxies
spellingShingle Astronomía
Galactic Dynamics
Regular and Chaotic Motion
Elliptical Galaxies
Muzzio, Juan Carlos
Regular and chaotic motion in elliptical galaxies
topic_facet Astronomía
Galactic Dynamics
Regular and Chaotic Motion
Elliptical Galaxies
description Here I review recent work, by other authors and by myself, on some particular topics related to the regular and chaotic motion in elliptical galaxies. I show that it is quite possible to build highly stable triaxial stellar systems that include large fractions of chaotic orbits and that partially and fully chaotic orbits fill different regions of space, so that it is important not to group them together under the single denomination of chaotic orbits. Partially chaotic orbits should not be confused with weakly fully chaotic orbits either, and their spatial distributions are also different. Slow figure rotation (i.e., rotation in systems with zero angular momentum) seems to be always present in highly flattened models that result from cold collapses, with the rotational velocity diminishing or becoming negligibly small for less flattened models. Finally, I comment on the usefulness and limitation of the classification of regular orbits via frequency analysis.
format Objeto de conferencia
Objeto de conferencia
author Muzzio, Juan Carlos
author_facet Muzzio, Juan Carlos
author_sort Muzzio, Juan Carlos
title Regular and chaotic motion in elliptical galaxies
title_short Regular and chaotic motion in elliptical galaxies
title_full Regular and chaotic motion in elliptical galaxies
title_fullStr Regular and chaotic motion in elliptical galaxies
title_full_unstemmed Regular and chaotic motion in elliptical galaxies
title_sort regular and chaotic motion in elliptical galaxies
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/129374
work_keys_str_mv AT muzziojuancarlos regularandchaoticmotioninellipticalgalaxies
bdutipo_str Repositorios
_version_ 1764820452443684864

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