Horizon-scale images of black holes (BHs) and their shadows have opened an
unprecedented window onto tests of gravity and fundamental physics in the strong-field …

Magnetic reconnection within a highly magnetized plasma has been seen as a viable
mechanism to extract the energy from a rotating black hole, as it can generate negative …

It was demonstrated by Comisso and Asenjo that the magnetic reconnection in the
ergosphere is a promising mechanism to extract energy from the rotating Kerr black hole. In …

Magnetic reconnection is a process that plays a critical role in plasma astrophysics by
converting magnetic energy into plasma particle energy. Recently, Comisso and Asenjo …

It has been recently shown that magnetic reconnection can provide us a novel mechanism to
extract black hole rotational energy from Kerr black holes. In this paper, we study the energy …

By assuming the cosmological principle ie, an isotropic and homogeneous universe, we
consider the cosmology of a vector-tensor theory of gravitation known as the bumblebee …

Magnetic reconnection provides a new avenue to extract energy from a rotating black hole in
astrophysical scenarios. There have been many works studying the feasibility of extracting …

We derive the exact solutions for electrically charged black holes both in the absence and
presence of a cosmological constant in the gravitational theory with Lorentz violation …

Recently, it has been demonstrated by Comisso and Asenjo that magnetic reconnection
processes in the ergosphere of a Kerr black hole can provide us with a promising …

Adopting the manifestation of low frequency and low mass for the scalar perturbation, we
perform a semiclassical analysis of the superradiance phenomenon for a rotating hairy …