365 citations · 560 across the 11 of their papers we have counts for
11 papers
Formation of asymmetric arms in barred galaxies
P. Sánchez-Martín, C. García-Gómez, J. J. Masdemont +1
We establish a dynamical mechanism to explain the origin of the asymmetry between the arms observed in some barred disk galaxies, where one of the two arms emanating from the bar e…
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…
The role of the unstable equilibrium points in the transfer of matter in galactic potentials
M. Romero-Gomez, J. J. Masdemont, C. Garcia-Gomez +1
We study the role of the unstable equilibrium points in the transfer of matter in a galaxy using the potential of a rotating triaxial system. In particular, we study the neighbourh…
Invariant manifolds as building blocks for the formation of spiral arms and rings in barred galaxies
M. Romero-Gomez, E. Athanassoula, J. J. Masdemont +1
We propose a theory to explain the formation of spiral arms and of all types of outer rings in barred galaxies, extending and applying the technique used in celestial mechanics to…
The formation of spiral arms and rings in barred galaxies
M. Romero-Gomez
We propose a theory to explain the formation of both spirals and rings in barred galaxies using a common dynamical framework. It is based on the orbital motion driven by the unstab…
On the origin of rR_1 ring structures in barred galaxies
M. Romero-Gomez, J. J. Masdemont, E. Athanassoula +1
We propose a new theory for the formation of rR_1 ring structures, i.e. for ring structures with both an inner and an outer ring, the latter having the form of ``8''. We propose th…