Figure 31

Figure 31: Adiabatic index γ for various EoSs of the ground-state outer crust below neutron drip. The horizontal line corresponds to γ = 4 ∕3. The neutron drip point ρND ≈ 4 × 1011 g cm–3 depends slightly on the EoS model used and, therefore, is not marked. From Rüster et al. [357].