79 citations · 1.5k across the 112 of their papers we have counts for
16 papers · 2 filters
Transition between order and chaos in a composite disk galaxy model with a massive nucleus and a dark matter halo
Nicolaos D. Caranicolas, Euaggelos E. Zotos
We investigate the transition from regular to chaotic motion in a composite galaxy model with a disk-halo, a massive dense nucleus and a dark halo component. We obtain relationship…
Investigating the nature of motion in 3D perturbed elliptic oscillators displaying exact periodic orbits
Nicolaos D. Caranicolas, Euaggelos E. Zotos
We study the nature of motion in a 3D potential composed of perturbed elliptic oscillators. Our technique is to use the results obtained from the 2D potential in order to find the…
Trapped and escaping orbits in an axially symmetric galactic-type potential
Euaggelos E. Zotos
In the present article, we investigate the behavior of orbits in a time independent axially symmetric galactic type potential. This dynamical model can be considered to describe th…
Order and chaos in a galactic model with a strong nuclear bar
Euaggelos E. Zotos
We use a composite gravitational galactic model consisting of a disk, a halo, a massive nucleus and a strong nuclear bar, in order to study the connections between global and local…
Chaos in a disk galaxy model induced by asymmetries in the dark halo
Nicolaos D. Caranicolas, Euaggelos E. Zotos
We study the regular or chaotic nature of motion in a disk galaxy with a dense nucleus and an asymmetric dark halo. Two cases, the 2D model and the 3D model, are investigated. In t…
Order and chaos in a triaxial galaxy model with a dark halo component
Nicolaos D. Caranicolas, Euaggelos E. Zotos
We study the regular or chaotic nature of orbits in a 3D potential describing a triaxial galaxy surrounded by a spherical dark halo component. Our numerical calculations show, that…
Dark halos acting as chaos controllers in asymmetric triaxial galaxy models
Nicolaos D. Caranicolas, Euaggelos E. Zotos
We study the regular or chaotic character of orbits in a 3D dynamical model, describing a triaxial galaxy surrounded by a spherical dark halo component. Our numerical experiments s…
The nature of orbits in a prolate elliptical galaxy model with a bulge and a dense nucleus
Nicolaos D. Caranicolas, Euaggelos E. Zotos
We study the transition from regular to chaotic motion in a prolate elliptical galaxy dynamical model with a bulge and a dense nucleus. Our numerical investigation shows that stars…
The evolution of chaos in active galaxy models with an oblate or a prolate dark halo component
Nicolaos D. Caranicolas, Euaggelos E. Zotos
The evolution of chaotic motion in a galactic dynamical model with a disk, a dense nucleus and a flat biaxial dark halo component is investigated. Two cases are studied: (i) the ca…
Using the S(c) spectrum to distinguish between order and chaos in a 3D galactic potential
Nicolaos D. Caranicolas, Euaggelos E. Zotos
The regular and chaotic character of orbits is investigated in a 3D potential describing motion in the central parts of a barred galaxy. This potential is an extension in the 3D sp…
Chaotic orbits in a 3D galactic dynamical model with a double nucleus
Nicolaos D. Caranicolas, Euaggelos E. Zotos
A 3D-dynamical model is constructed for the study of motion in the central regions of a disk galaxy with a double nucleus. Using the results of the 2D-model, we find the regions of…
A new dynamical model for the study of galactic structure
Euaggelos E. Zotos
In the present article, we present a new gravitational galactic model, describing motion in elliptical as well as in disk galaxies, by suitably choosing the dynamical parameters. M…
Order and Chaos in a Three-dimensional Binary System of Interacting Galaxies
Euaggelos E. Zotos
In the present article, we present a galactic gravitational model of three degrees of freedom, in order to investigate and reveal the behavior of orbits in a binary quasar system.…
Are external perturbations responsible for chaotic motion in galaxies?
Euaggelos E. Zotos
We study the nature of motion in a logarithmic galactic dynamical model, with an additional external perturbation. Two different cases are investigated. In the first case the exter…
Exploring the nature of orbits in a galactic model with a massive nucleus
Euaggelos E. Zotos
In the present article, we use an axially symmetric galactic gravitational model with a disk-halo and a spherical nucleus, in order to investigate the transition from regular to ch…
Comparing the behavior of orbits in different 3D dynamical models for elliptical galaxies
Euaggelos E. Zotos
We study the behavior of orbits in two different galactic dynamical models, describing the motion in the central parts of a triaxial elliptical galaxy with a dense nucleus. Numeric…