14 citations · 31 across the 3 of their papers we have counts for
3 papers
Precessing ellipses as the building blocks of spiral arms
M. Harsoula, K. Zouloumi, C. Efthymiopoulos +1
Stable periodic orbits in spiral galactic models that form families of precessing ellipses can create spiral density waves similar to those that are observed in real grand-design g…
Manifold spirals, disc-halo interactions and the secular evolution in N-body models of barred galaxies
C. Efthymiopoulos, P. E. Kyziropoulos, R. I. Paez +2
The manifold theory of barred-spiral structure provides a dynamical mechanism explaining how spiral arms beyond the ends of galactic bars can be supported by chaotic flows extendin…
Analytical description of the structure of chaos
M. Harsoula, G. Contopoulos, C. Efthymiopoulos
We consider analytical formulae that describe the chaotic regions around the main periodic orbit of the Hénon map. Following our previous paper (Efthymiopoulos, Contopoul…