597 citations · 11.5k across the 182 of their papers we have counts for
14 papers · 2 filters
Dynamical modelling of galactic disc outskirts
E. Athanassoula
I review briefly some dynamical models of structures in the outer parts of disc galaxies, including models of polar rings, tidal tails and bridges. I then discuss the density distr…
Metallicity-dependendent kinematics and morphology of the Milky Way bulge
E. Athanassoula, S. A. Rodionov, N. Prantzos
We use N-body chemo-dynamic simulations to study the coupling between morphology, kinematics and metallicity of the bar/bulge region of our Galaxy. We make qualitative comparisons…
Constraining the dark matter content of NGC 1291 using hydrodynamic gas response simulations
F. Fragkoudi, E. Athanassoula, A. Bosma
We present a pilot study on the nearby massive barred galaxy NGC 1291, in which we use dynamical modelling to constrain the disc mass-to-light ratio (M/L), thus breaking the degene…
Morpho-kinematics of z~1 galaxies probe the hierarchical scenario
M. Rodrigues, F. Hammer, H. Flores +2
We have studied a representative sample of intermediate-mass galaxies at z~1, observed by the kinematic survey KMOS3D. We have re-estimated the kinematical parameters from the publ…
The (dark) halo-to-stellar mass ratio in the Spitzer Survey of Stellar Structure in Galaxies (SG)
Simón Díaz-García, Heikki Salo, Eija Laurikainen +1
We use 3.6 m photometry for 1154 disk galaxies () in the Spitzer Survey of Stellar Structure in Galaxies (SG, Sheth et al. 2010) to obtain the stellar compon…
Evidence of Bar-induced Secular Evolution in the Inner Regions of Stellar Discs in Galaxies: What Shapes Disc Galaxies?
Taehyun Kim, Dimitri A. Gadotti, E. Athanassoula +3
We present evidence of bar-induced secular evolution in galactic discs using 3.6 images of nearby galaxies from the Spitzer Survey of Stellar Structure in Galaxies (S4G). We…
A close look at secular evolution: Boxy/peanut bulges reduce gas inflow to the central kiloparsec
F. Fragkoudi, E. Athanassoula, A. Bosma
In this letter we investigate the effect of boxy/peanut (b/p) bulges on bar-induced gas inflow to the central kiloparsec, which plays a crucial role on the evolution of disc galaxi…
The orbital structure of a tidally induced bar
Grzegorz Gajda, Ewa L. Lokas, E. Athanassoula
Orbits are the key building blocks of any density distribution and their study helps us understand the kinematical structure and the evolution of galaxies. Here we investigate orbi…
Forming first-ranked early-type galaxies through hierarchical dissipationless merging
IDILICO Collaboration, J. M. Solanes, J. D. Perea +4
We have developed a computationally competitive N-body model of a previrialized aggregation of galaxies in a flat LambdaCDM universe to assess the role of the multiple mergers that…
Breaking the disc-halo degeneracy in NGC 1291 using hydrodynamic simulations
F. Fragkoudi, E. Athanassoula, A. Bosma
We present a pilot study on the nearby massive galaxy NGC 1291, in which we aim to constrain the dark matter in the inner regions, by obtaining a dynamical determination of the dis…
Forming disk galaxies in wet major mergers. I. Three fiducial examples
E. Athanassoula, S. A. Rodionov, N. Peschken +1
Using three fiducial Nbody+SPH simulations, we follow the merging of two disk galaxies with a hot gaseous halo component each, and examine whether the merger remnant can be a spira…
Halpha Kinematics of S4G Spiral Galaxies - III. Inner rotation curves
Santiago Erroz-Ferrer, Johan H. Knapen, Ryan Leaman +10
We present a detailed study of the shape of the innermost part of the rotation curves of a sample of 29 nearby spiral galaxies, based on high angular and spectral resolution kinema…
Tidally Induced Offset Disks in Magellanic Spiral Galaxies
Stephen A. Pardy, Elena D'Onghia, E. Athanassoula +2
Magellanic spiral galaxies are a class of one-armed systems that often exhibit an offset stellar bar, and are rarely found around massive spiral galaxies. Using a set of N-body and…
Tidally induced bars of galaxies in clusters
Ewa L. Lokas, Ivana Ebrova, Andres del Pino +5
Using N-body simulations we study the formation and evolution of tidally induced bars in disky galaxies in clusters. Our progenitor is a massive, late-type galaxy similar to the Mi…