Department of Physics2024-12-2920240034-686110.1103/RevModPhys.96.0150042-s2.0-85187526381https://doi.org/10.1103/RevModPhys.96.015004https://hdl.handle.net/20.500.14288/23067Scalarization is a mechanism that endows strongly self -gravitating bodies, such as neutron stars and black holes, with a scalar -field configuration. It resembles a phase transition in that the scalar configuration appears only when a certain quantity that characterizes the compact object, for example, its compactness or spin, is beyond a threshold. A critical and comprehensive review of scalarization, including the mechanism itself, theories that exhibit it, its manifestation in neutron stars, black holes and their binaries, potential extension to other fields, and a thorough discussion of future perspectives, is provided.Black holesNeutron starsGeneral relativityReview1539-07561187950600001Q141206