2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/199951Unstable modes in asymmetric nuclear matter (ANM) at subsaturation densities are studied in the framework of relativistic mean-field density-dependent hadron models. The size of the instabilities that drive the system are calculated and a comparison with results obtained within the non-linear Walecka model is presented. The distillation and anti-distillation effects are discussed.8 pages, 8 Postscript figures. Submitted for publication in Phys. Rev. CNuclear Theorytext