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n14:cosmologyincludingclustersofgalaxies n16:galaxieskinematicsanddynamicsofgalaxies n16:galaxiesspiral
dcterms:title
Periodic orbits in warped disks
dcterms:date
2001-01-01
rdaw:P10072
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dcterms:abstract
It is often assumed that a warped galaxy can be modeled by a set of rings. This paper verifies numerically the validity of this assumption by the study of periodic orbits populating a heavy self-gravitating warped disk. The phase space structure of a warped model reveals that the circular periodic orbits of a flat disk are transformed in quasi annular periodic orbits which conserve their stability. This lets us also explore the problem of the persistence of a large outer warp. In particular, the consistency of its orbits with the density distribution is checked as a function of the pattern speed.
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aa10494
dcterms:dateCopyrighted
2001-01-01
dcterms:rights
© ESO, 2001
dcterms:rightsHolder
ESO
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