Accretion in a Hybrid Metric-Palatini f(R)-Gravity onto Spherically Symmetric Black Holes

In this work, accretion onto spherically symmetric black hole in hybrid metric-Palatini f(R)}-gravity was studied within the framework of the Novikov-Thorn model. The average energy flux from the disk surface was numerically obtained for two cases: V = 0 and V = - mu(2)/2 phi(2)+ zeta/4 phi(4). We also note that in each considered case, the prediction of the theory for this quantity are compared with similar result for the Schwarzschild black hole.