48 citations · 204 across the 7 of their papers we have counts for
3 papers · 1 filter
Invariant manifolds and the response of spiral arms in barred galaxies
P. Tsoutsis, C. Kalapotharakos, C. Efthymiopoulos +1
The unstable invariant manifolds of the short-period family of periodic orbits around the unstable Lagrangian points and of a barred galaxy define loci in the configura…
The coalescence of invariant manifolds and the spiral structure of barred galaxies
P. Tsoutsis, C. Efthymiopoulos, N. Voglis
In a previous paper (Voglis et al. 2006a, paper I) we demonstrated that, in a rotating galaxy with a strong bar, the unstable asymptotic manifolds of the short period family of uns…
Appropriate SCF basis sets for orbital studies of galaxies and a `quantum-mechanical' method to compute them
Constantinos Kalapotharakos, Christos Efthymiopoulos, Nikos Voglis
We address the question of an appropriate choice of basis functions for the self-consistent field (SCF) method of simulation of the N-body problem. Our criterion is based on a comp…