Figure 39: Mass of the crust shell for the ground-state crust and for the accreted crust. The
total stellar mass is . Accreted crust: EoS of Haensel & Zdunik [185]. Ground-state
crust: same compressible liquid drop model of atomic nuclei of Mackie & Baym [277], but full
thermodynamic equilibrium (cold catalyzed matter). The black dots indicate the neutron drip
transition. Left panel: fractional mass of the crust shell, , vs. its bottom density . Right
panel: versus depth below the star surface, z.
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