47 citations · 100 across the 4 of their papers we have counts for
5 papers
The evolution of the phase space structure along pitchfork and period-doubling bifurcations in a 3D galactic bar potential
Henok Tenaw Moges, Matthaios Katsanikas, Panos Patsis +2
We investigate how the phase space structure of a 3D autonomous Hamiltonian system evolves across a series of successive 2D and 3D pitchfork and period-doubling bifurcations, as th…
Structures induced by companions in galactic discs
P. Kyziropoulos, C. Efthymiopoulos, G. Gravvanis +1
Using N-body simulations we study the structures induced on a galactic disc by repeated flybys of a companion in decaying eccentric orbit around the disc. Our system is composed by…
The phase-space of boxy-peanut and X-shaped bulges in galaxies II. The relation between face-on and edge-on boxiness
P. A. Patsis, M. Katsanikas
We study the dynamical mechanisms that reinforce the formation of boxy structures in the \textit{inner} regions, roughly in the middle, of bars observed nearly \textit{face-on}. Ou…
The phase-space of boxy-peanut and X-shaped bulges in galaxies I. Properties of non-periodic orbits
P. A. Patsis, M. Katsanikas
The investigation of the phase-space properties of structures encountered in a dynamical system is essential for understanding their formation and enhancement. In the present paper…
Ordered and chaotic spirals in disk galaxies
P. A. Patsis, C. Kalapotharakos
The pattern speeds of spiral galaxies are closely related to the flow of material in their disks. Flows that follow the `precessing ellipses' paradigm (see e.g., Kalnajs 1973) are…