Abstract
In the present work we explored the dynamics of magnetized particles around the compact object in γ-spacetime in the presence of an external asymptotically-uniform magnetic field. The analysis of the circular orbits of magnetized particles around the compact object in the spacetime of a γ-object immersed in the external magnetic field has shown that the area of stable circular orbits of magnetized particles increases with the increase of γ-parameter. We have also investigated the acceleration of the magnetized particles near the γ-object and shown that the center-of-mass energy of colliding magnetized particles increases with the increase of γ-parameter. Finally, we have applied the obtained results to the astrophysical scenario and shown that the values of γ-parameter in the range of γ∈(0.5,1) can mimic the spin of Kerr black hole up to a≃0.85, while the magnetic interaction can mimic the γ-parameter at γ∈(0.8,1) and spin of a Kerr black hole up to a≃0.3.
Highlights
The Kerr black hole (BH) geometry changes the structure of the asymptotically-uniform magnetic field in its close vicinity [1]
Compact Object Immersed in Uniform Magnetic Field In Reference [94], we have found the exact analytical solution for the four-potential of the electromagnetic field around a compact object in γ-spacetime immersed in an external asymptotically uniform magnetic field
We have investigated the dynamics of the magnetized particles and energetic processes, namely the acceleration process during the collision of magnetized and charged particles in close vicinity of the compact γ-object immersed in an external asymptotically-uniform magnetic field
Summary
The Kerr black hole (BH) geometry changes the structure of the asymptotically-uniform magnetic field in its close vicinity [1]. We consider the magnetized particle motion and acceleration in the spacetime of the non-rotating compact object described by the so-called γ-metric ( known as the Zipoy–Voorhees spacetime metric) [82,83] This spacetime metric has been extended to the case of the presence of the scalar field in Reference [84]. The dynamics of the test of magnetized particles around compact objects leading to the degeneracy between the parameters of alternate theories of gravity and spin parameter of Kerr BH through the innermost stable circular orbit (ISCO) measurements are studied in [79,80,81,92,93]. Latin indices run from 1 to 3 and Greek ones from 0 to 3
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