Electrically charged strange quark stars with a non-linear equation-of-state
Grigoris Panotopoulos (Departamento de Física, Centro de Astrofísica e Gravitação, Instituto Superior Técnico-IST, Universidade de Lisboa-UL, Av. Rovisco Pais, Lisbon, 1049-001, Portugal); Ángel Rincón (Instituto de Física, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2950, Casilla, Valparaíso, 4059, Chile)
The properties of electrically charged strange quark stars are investigated. We assume a non-linear equation-of-state, and we obtain numerical solutions to the structure equations. The key features of the solutions obtained here are (i) they can support a 2 solar masses star, (ii) both the mass and the electric charge of the stars increase with the α α parameter characterizing the electric density, (iii) the electric object is heavier and larger than its neutral counterpart.