Astrophysical flows near [Formula: see text] gravity black holes

Eur Phys J C Part Fields. 2016;76:269. doi: 10.1140/epjc/s10052-016-4118-5. Epub 2016 May 13.


In this paper, we study the accretion process for fluids flowing near a black hole in the context of f(T) teleparallel gravity. Specifically, by performing a dynamical analysis by a Hamiltonian system, we are able to find the sonic points. After that, we consider different isothermal test fluids in order to study the accretion process when they are falling onto the black hole. We find that these flows can be classified according to the equation of state and the black hole features. Results are compared in f(T) and f(R) gravity.