166 citations · 1.7k across the 49 of their papers we have counts for
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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…
Three-dimensional numerical simulations of the pulsar magentoshere: Preliminary results
Constantinos Kalapotharakos, Ioannis Contopoulos
We investigate the three-dimensional structure of the pulsar magnetosphere through time-dependent numerical simulations of a magnetic dipole that is set in rotation. We developed o…
The rate of secular evolution in elliptical galaxies with central masses
Constantinos Kalapotharakos
We study a series of body simulations representing elliptical galaxies with central masses. Starting from two different systems with smooth centres, which have initially a tria…
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…
Special Features of Galactic Dynamics
Christos Efthymiopoulos, Nikos Voglis, Constantinos Kalapotharakos
The present lecture notes are an introduction to selected topics of {\it Galactic Dynamics}. The focus is on topics that we consider more relevant to the main theme of this worksho…