5 papers
Substructures formation induced by gravitational tides?
F. Renaud, Ch. Theis, T. Naab +1
Physics lectures always refer to the tides as a disruptive effect. However, tides can also be compressive. When the potential of two galaxies overlap, as happens during a merger, f…
Starburst triggered by compressive tides in galaxy mergers
Florent Renaud, Christian Theis, Christian M. Boily
The tidal field of galaxies is known generally to be disruptive. However, in the case of galaxy mergers, a compressive mode of tidal wave may develop and last long enough to cocoon…
Towards an accurate model for the Antennae Galaxies
Simon J. Karl, Thorsten Naab, Peter H. Johansson +2
In the framework of hierarchical structure formation ellipticals can form from merging of smaller disk galaxies. The nearby interacting 'Antennae' galaxy pair (NGC 4038/39) is one…
On time-dependent orbital complexity in gravitational N-body simulations
N. T. Faber, C. M. Boily, S. Portegies Zwart
We implement an efficient method to quantify time-dependent orbital complexity in gravitational -body simulations. The technique, which we name DWaTIM, is based on a discrete wa…
Black Hole Motion as Catalyst of Orbital Resonances
C. M. Boily, T. Padmanabhan, A. Paiement
The motion of a black hole about the centre of gravity of its host galaxy induces a strong response from the surrounding stellar population. We treat the case of a harmonic potenti…