Open Access

Table 1

Parameters of the runs performed with ColDICE (Sousbie & Colombi 2016).

Designation ϵ2D or ϵ3D ϵx ng ns asc âsc asc + ∆a
Quasi 1D
Q1D-2SIN 1/6 −18 2048 2048 0.05279 0.05285 0.05281 0.05402
Q1D-3SIN (1/6, 1/8) −24 512 256 0.03815 0.03832 0.03819 0.03907

Anisotropic
ANI-2SIN 2/3 −18 2048 2048 0.04531 0.04545 0.04534 0.04601
ANI-3SIN (3/4, 1/2) −24 512 512 0.02911 0.02919 0.02915 0.03003

Axial-symmetric
SYM-2SIN 1 −18 2048 2048 0.04076 0.04090 0.04078 0.04101
SYM-3SIN (1, 1) −18 512 512 0.03190 0.03155 0.03190 0.03201

Notes. The first column indicates the designation of the run. The second column corresponds to the relative amplitudes of the initial sine waves, namely ϵ2D = ϵvx and ϵ3D = (ϵvx, ϵzx) for two and three sine waves, respectively. The third column gives the value of ϵx. The fourth and fifth columns respectively give the spatial resolution ng of the grid used to solve the Poisson equation and the spatial resolution ns of the mesh of vertices used to construct the initial tessellation (see Sect. 3 for details). The sixth column indicates the scale factor at the shell-crossing estimated by LPT extrapolated to the infinite order (Saga et al. 2018), while the seventh one provides the value asc measured in the Vlasov runs (see Appendix B.1) and which is actually used in Sect. 4.2. The eighth column indicates the value âsc of the expansion factor of the closest available simulation snapshot to the collapse time for the comparisons performed in Sect. 4. Finally, the last column indicates the value of the expansion factor used for the analyses performed beyond the collapse time in Sect. 5. We note that with the normalisation of the scale factor used here, the value of asc has to be multiplied by |ϵx| to obtain a more intuitive collapse time, which would be equal to unity in the purely 1D case.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.