We present a review of the influence of cosmic repulsion and external magnetic fields on
accretion disks rotating around rotating black holes and on jets associated with these …

This paper is devoted to studying thermodynamics and particle acceleration around charged
rotating BHs surrounded by perfect fluid dark matter. In the beginning, we discuss BH …

Magnetic Penrose process (MPP) is not only the most exciting and fascinating process
mining the rotational energy of black hole but it is also the favored astrophysically viable …

The production and acceleration mechanisms of ultrahigh-energy cosmic rays (UHECRs) of
energy> 10 20 eV, clearly beyond the GZK cutoff limit, remain unclear, which points to the …

We present a review of the Penrose process and its modifications in relation to the Kerr
black holes and naked singularities (superspinars). We introduce the standard variant of this …

In this paper, we have investigated the dynamics of magnetized particles around 4-D
Einstein Gauss–Bonnet black hole immersed in an external asymptotically uniform magnetic …

The paper has explored analogue of gravitational synchrotron massive particle and Penrose
process in MOdified Gravity (MOG) known as Scalar-Tensor-Vector-Gravity (STVG) …

We give a possible splitting method to a Hamiltonian for the description of charged particles
moving around the Reissner–Nordström-(anti)-de Sitter black hole with an external magnetic …

We consider the electromagnetic field occurring in the background of a static, axially
symmetric vacuum solution of Einstein's field equations immersed in an external magnetic …

The study of charged particle dynamics in the combined gravitational and magnetic field can
provide important theoretical insight into astrophysical processes around black holes. In this …