From the 1 of 12 linked papers with an AI index.
12 papers
Gravitational wave propagation in HoÅava-Lifshitz gravity
A. A. Araújo Filho, J. L. A. Silva, N. Heidari +3
We investigate the generation and propagation of gravitational waves in the leading parity-even infrared truncation of HoÅava-Lifshitz gravity, characterized by the modified tenso…
Fermi Acceleration Mechanisms Beyond Lorentz Symmetry
Gilson A. Ferreira, Erick Aguiar, A. A. Araújo Filho +3
The authors construct models of first- and second-order Fermi acceleration that include generic frame transformations, dispersion relations, and conservation laws, and study how de…
Shadows and lensing signatures of a rotating black hole in a Hernquist dark matter halo
A. A. Araújo Filho, Arun Kumar, N. Heidari +3
We investigate the optical properties of a rotating black hole immersed in a Hernquist dark matter halo. The spacetime is generated from a static Hernquist black hole through the n…
Gravitational Wave Signatures from Periodic Orbits around a Non--commutative Schwarzschild Black Hole
N. Heidari, A. A. Araújo Filho, I. P. Lobo +1
In this work, we investigate massive particle motion and the gravitational wave emission generated by periodic trajectories around a non--commutative \textit{Schwarzschild} black h…
Gravitational wave signatures and periodic orbits of a charged black hole in a Hernquist dark matter halo
N. Heidari, A. A. Araujo Filho, Iarley P. Lobo
In this work, we study the motion of massive test particles and the gravitational--wave emission associated with periodic trajectories around a magnetically charged black hole imme…
Particle production, absorption, scattering, and geodesics in a Schwarzschild-Hernquist black hole
N. Heidari, A. A. Araújo Filho, P. H. M. Barros
We investigate quantum and classical signatures of a Schwarzschild black hole embedded in a Hernquist dark matter halo. Starting from the exact spherically symmetric solution descr…