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oai:docta.ucm.es:20.500.14352/720782023-08-28T13:05:46Zcom_20.500.14352_14col_20.500.14352_15

Blázquez Salcedo, José Luis Kleihaus, Burkhard Kunz, Jutta 2023-06-22T11:04:37Z 2023-06-22T11:04:37Z 2022-02-28 2218-1997 10.3390/universe8030153 https://hdl.handle.net/20.500.14352/72078 https://doi.org/10.3390/universe8030153 https://www.mdpi.com/2218-1997/8/3/153/htm We address neutron stars and black holes in alternative gravities, after recalling their basic properties in General Relativity. Among the plethora of interesting alternative gravities we here focus on an interesting set of scalar-tensor theories. We discuss the phenomenon of spontaneous scalarization, that is, matter induced for neutron stars and curvature induced for black holes. Along with other relevant physical properties, we address the quasi-normal modes of these compact objects. In particular, we consider universal relations of neutron stars to largely reduce the dependence on the equation of state, and we briefly address the shadow of black holes. eng https://creativecommons.org/licenses/by/3.0/es/ open access Atribución 3.0 España Compact Objects in Alternative Gravities journal article