S E M I N A R I

Departament d'Astronomia i Astrofísica
Universitat de València

    Geometric properties of Keplerian self-gravitating perfect-fluid tori around black holes

Patryk Mach

Universitat Jaguelònica, Cracòvia (Polònia)


Seminari del departament d'Astronomia i Astrofísica

Dimarts 18 febrer 2020

12:00


Resum

I will report recent results in modeling of self-gravitating perfect-fluid Keplerian tori around black holes. The emphasis will be put on geometric properties of the corresponding spacetimes and their connection with parametric bifurcation occurring in the solution space. I will discuss the nonmonotonicity of the circumferential radius and the breaking of the Pappus-Guldinus rule. If time permits, I should also comment on the occurrence of toroidal ergoregions and the properties of geodesics in the obtained spacetimes.