Periodic orbits and gravitational wave radiation of a phantom Dirac--Born--Infeld regular black hole Gravity
Abstract
We investigate periodic orbits and gravitational wave radiation in the spacetime of an asymptotically flat regular black hole supported by a phantom Dirac--Born--Infeld scalar field. Starting from the timelike geodesic equations, we examine the effective potential and the characteristic circular orbits and construct periodic zoom--whirl trajectories. We further explore the sensitivity of orbital closure to small energy perturbations and examine the periastron advance of the S2 star around Sgr A* to assess possible constraints on the regular core parameter. The gravitational wave signals associated with representative periodic trajectories are then calculated within a quadrupole based numerical kludge approximation, considering both polarization modes. Particular attention is given to the influence of the regular core on orbital configurations and waveform characteristics, providing a complementary perspective on gravitational aspects of phantom Dirac--Born--Infeld regular black holes.
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BibTeX
@misc{heidari2026periodic,
title = {{Periodic orbits and gravitational wave radiation of a phantom Dirac--Born--Infeld regular black hole Gravity}},
author = {N. Heidari and A. A. Araújo Filho and Iarley P. Lobo and V. B. Bezerra},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.09975},
eprint = {2611.09975},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.09975},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - UNPB
TI - Periodic orbits and gravitational wave radiation of a phantom Dirac--Born--Infeld regular black hole Gravity
AU - N. Heidari
AU - A. A. Araújo Filho
AU - Iarley P. Lobo
AU - V. B. Bezerra
PY - 2026
DA - 2026/11/01
PB - arXiv
DO - 10.48550/arxiv.2611.09975
UR - https://arxiv.org/abs/2611.09975
AB - We investigate periodic orbits and gravitational wave radiation in the spacetime of an asymptotically flat regular black hole supported by a phantom Dirac--Born--Infeld scalar field. Starting from the timelike geodesic equations, we examine the effective potential and the characteristic circular orbits and construct periodic zoom--whirl trajectories. We further explore the sensitivity of orbital closure to small energy perturbations and examine the periastron advance of the S2 star around Sgr A^* to assess possible constraints on the regular core parameter. The gravitational wave signals associated with representative periodic trajectories are then calculated within a quadrupole based numerical kludge approximation, considering both polarization modes. Particular attention is given to the influence of the regular core on orbital configurations and waveform characteristics, providing a complementary perspective on gravitational aspects of phantom Dirac--Born--Infeld regular black holes.
ER -