Extended Data Table 1 Parameters of the simulation levels

From: Universal structure of dark matter haloes over a mass range of 20 orders of magnitude

  1. Column 1: name of the level; column 2: Rhigh, the radius of the high-resolution region; column 3: np, the total number of high-resolution particles; column 4: ε, the softening length of the high-resolution particles; column 5: mp, the mass of the high-resolution particles; column 6: σ(Mtot, z = 0), the r.m.s. linear overdensity, extrapolated to z = 0, within spheres that on average contain mass Mtot = npmp; column 7: \(\langle \rho \rangle /{\rho }_{{\rm{mean}}}\), the mean mass density at z = 0 in the high-resolution region in units of the cosmic mean; column 8: Mchar, the typical mass of the equilibrium haloes for which profiles were stacked in Fig. 2; column 9: Nchar, the number of haloes in the mass bin [0.8Mchar, 1.2Mchar] used in the stacks; column 10: zform, the median formation redshift of equilibrium haloes of the characteristic mass; column 11: fvir, the fraction of haloes with more than 3,000 particles that are in equilibrium according to the criteria given in the text.
Back to article page