Effect of Multipole Moments in the Weak Field Limit of a Black Hole Plus Halo Potential
| Autor: | Euaggelos E. Zotos, Tareq Saeed, F. L. Dubeibe |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Physics
FOS: Physical sciences Astronomy and Astrophysics General Relativity and Quantum Cosmology (gr-qc) Nonlinear Sciences - Chaotic Dynamics General Relativity and Quantum Cosmology Black hole Specific orbital energy Space and Planetary Science Phase space Bounded function Quantum electrodynamics Quadrupole Halo Chaotic Dynamics (nlin.CD) Test particle Multipole expansion |
| Popis: | In this paper, we consider a Newtonian system whose relativistic counterpart describes a superimposed halo with a black hole. Our aim is to determine how the quadrupole and octupole moments affect the nature of the motion of a test particle, moving in the close vicinity of the black hole. The different types of trajectories for the test particle are mainly classified as bounded, collisional, and escaping, by using modern color-coded basin diagrams. Moreover, an additional analysis is carried out for distinguishing between the different types of bounded motion (regular, sticky, and chaotic). Our results strongly indicate that the multipole moments, along with the total orbital energy, highly affect the final state of the test particle, while at the same time the basin geometry of the phase space tends to be highly dominated by collision and escape orbits. 10 pages, 7 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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