Table 1.
Parameters used for the simulations performed in this article.
| n | η | (Nr, Nv, Nj) | N (Gadget-2) | 25 tdyn (centre) | 25 tdyn (10 percent) |
|---|---|---|---|---|---|
| 0 | 0.545 | (2048, 2048,128) | 107 | 108 | 123 |
| −0.5 | 0.536 | ” | ” | 82 | 106 |
| −1.0 | 0.526 | ” | ” | 47 | 77 |
| −1.5 | 0.515 | ” | ” | 13 | 46 |
| 0 | 0.109 | ” | ” | 17 | 21 |
| −0.5 | 0.108 | ” | ” | 15 | 24 |
| −1.0 | 0.106 | ” | ” + shells | 9 | 23 |
| −1.5 | 0.104 | ” + (1024,512,512) | ” + 108 + shells | 4 | 19 |
Notes. From left to right, the table gives the slope n of the initial density profile, the actual value η of the virial ratio after apodization (see Eq. (7)), the resolution (Nr, Nv, Nj) of the Vlasov code grid, the number N of particles in the Gadget-2 simulations, with the mention of when the shell code is used as well. Finally, the two last columns give the approximate value of time after 25 harmonic orbits respectively computed from the density measured at the centre of the simulation and from the average density measured in a sphere containing 10% of the total mass of the system, once the system has reached a quasi-stationary regime.
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