Mostrar el registro sencillo del ítem
dc.contributor.author
Muzzio, Juan Carlos
dc.date.available
2018-03-15T17:11:59Z
dc.date.issued
2006-10
dc.identifier.citation
Muzzio, Juan Carlos; Regular and chaotic orbits in a self-consistent triaxial stellar system with slow figure rotation; Springer; Celestial Mechanics & Dynamical Astronomy; 96; 2; 10-2006; 85-97
dc.identifier.issn
0923-2958
dc.identifier.uri
http://hdl.handle.net/11336/38926
dc.description.abstract
We created a self-consistent triaxial stellar system through the cold disipationless collapse of 100,000 particles whose evolution was followed with a multipolar code. The resulting system rotates slowly even though its total angular momentum is zero, i.e., it offers an example of figure rotation. The potential of the system was subsequently approximated with interpolating formulae yielding a smooth potential stationary in the rotating frame. The Lyapunov exponents could then be computed for a randomly selected sample of 3,472 of the bodies that make up the system, allowing the recognition of regular and partially and fully chaotic orbits. The regular orbits were Fourier analyzed and classified using their locations on the frequency map. A comparison with a similar non-rotating model showed that the fraction of chaotic orbits is slightly but significantly enhanced in the rotating model; alternatively, there are no significant differences between the corresponding fractions neither of partially and fully chaotic orbits nor of long axis tubes, short axis tubes, boxes and boxlets among the regular orbits. This is a reasonable result because the rotation causes a breaking of the symmetry that may increase chaotic effects, but the rotation velocity is probably too small to produce any other significant differences. The increase in the fraction of chaotic orbits in the rotating system seems to be due mainly to the effect of the Coriolis force, rather than the centrifugal force, in good agreement with the results of other investigations. © Springer Science+Business Media B.V. 2006.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Chaotic Motion
dc.subject
Figure Rotation
dc.subject
Stellar Orbits
dc.subject
Triaxial Stellar Systems
dc.subject.classification
Astronomía
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Regular and chaotic orbits in a self-consistent triaxial stellar system with slow figure rotation
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-03-06T15:11:27Z
dc.journal.volume
96
dc.journal.number
2
dc.journal.pagination
85-97
dc.journal.pais
Alemania
dc.description.fil
Fil: Muzzio, Juan Carlos. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
dc.journal.title
Celestial Mechanics & Dynamical Astronomy
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10569-006-9036-7
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10569-006-9036-7
Archivos asociados