597 citations · 11.5k across the 182 of their papers we have counts for
4 papers · 2 filters
New Results on Bar-Halo Interactions
E. Athanassoula
In this paper I argue that, far from necessarily hindering bar formation in disc galaxies, inner haloes may stimulate it. This constitutes a new instability mechanism by which bars…
Isolated and Interacting Galaxies : Simulations with GRAPE
E. Athanassoula
I present N-body simulations of isolated and interacting galaxies, made on GRAPE machines. In particular I discuss the formation and evolution of N-body bars and compare their prop…
Morphology, photometry and kinematics of N-body bars. I Three models with different halo central concentrations
E. Athanassoula, A. Misiriotis
We discuss the morphology, photometry and kinematics of the bars which have formed in three N-body simulations. These have initially the same disc and the same halo-to-disc mass ra…
Relaxation times calculated from angular deflections
E. Athanassoula, Ch. L. Vozikis, J. C. Lambert
In this paper we measure the two-body relaxation time from the angular deflection of test particles launched in a rigid configuration of field particles. We find that centrally con…