S E M I N A R IDepartament d'Astronomia i Astrofísica
Universitat de València
Differentially rotating strange quark stars
Universitat de Zielona Góra, Polònia
Seminari del departament d'Astronomia i Astrofísica
Dimarts 06 febrer 2018
Strange quark stars are considered as a possible alternative to neutron stars as compact objects. A hot compact star (a proto-neutron star or a strange star) born in a supernova explosion or a remnant of neutron star binary merger are expected to rotate differentially. Rotating compact stars are considered as important sources of gravitational waves for Advanced Virgo/Ligo detectors. We present results of the first relativistic calculations of differentially rotating strange quark stars for broad ranges of degree of differential rotation and maximum densities, including all previously predicted types of solutions, and compare them with results for neutrons stars. Using a highly accurate, relativistic code we show that rotation may cause a significant increase of the maximum allowed mass and can temporarily stabilize stars against prompt collapse into a black hole.