125 citations · 397 across the 11 of their papers we have counts for
4 papers · 1 filter
On the shape of pancakes: catastrophe theory and Gaussian statistics in 2D
Abineet Parichha, Stephane Colombi, Shohei Saga +1
Cold dark matter (CDM) can be thought of as a 2D (or 3D) sheet of particles in 4D (or 6D) phase-space due to its negligible velocity dispersion. The large-scale structure, also cal…
Post-collapse Lagrangian perturbation theory in three dimensions
Shohei Saga, Stéphane Colombi, Atsushi Taruya +2
The gravitational collapse of collisionless matter leads to shell-crossing singularities that challenge the applicability of standard perturbation theory. Here, we present the firs…
Multiscale Turbulence Synthesis: Validation in 2D Hydrodynamics
Pierre Lesaffre, Jean-Baptiste Durrive, Jean Goossaert +5
Numerical simulations can follow the evolution of fluid motions through the intricacies of developed turbulence. However, they are rather costly to run, especially in 3D. In the pa…
Dark matter halo dynamics in 2D Vlasov Simulations: a self-similar approach
Abineet Parichha, Stephane Colombi, Shohei Saga +1
Understanding dark matter halo dynamics can be pivotal in unravelling the nature of dark matter particles. Analytical treatment of the multistream flows inside the turnaround regio…