(color online) (a) Phase diagram of SW particles with attraction range parameter λ = 1.5 in the temperature-density plane. (b) Comparisons of vapor–liquid binodals, critical points from our calculations and the literature. Binodals calculated at pressures of 0.08, 0.06, 0.04, and 0.02 are represented by solid symbols colored in orange, green, purple and blue, respectively. The crosses are taken from Vega et al.,^[6] the pluses from Singh et al.,^[9] and the empty squares from del Rio et al.^[10] The vapor–liquid critical point in this work is estimated ( , , , represented by the yellow square, in comparison with data from the literature represented by the black circles (for the details see Table 1).