2000 character limit reached
Black bounces in conformal Killing gravity (2405.09702v1)
Published 15 May 2024 in gr-qc, astro-ph.HE, and hep-th
Abstract: In this work, we analyse black bounce solutions in the recently proposed ``Conformal Killing gravity'' (CKG), by coupling the theory to nonlinear electrodynamics (NLED) and scalar fields. The original motivation of the theory was essentially to fulfil specific criteria that are absent in existing gravitational theories, namely, to obtain the cosmological constant as an integration constant, derive the energy-momentum conservation law as a consequence of the gravitational field equations, rather than assuming it, and not necessarily considering conformally flat metrics as vacuum solutions. In this work, we extend the static and spherically symmetric solutions obtained in the literature, and explore the possibility of black bounces in CKG, coupled to NLED and scalar fields. We find novel NLED Lagrangian densities and scalar potentials, and extend the class of black bounce solutions found in the literature. Furthermore, within black bounce geometries, we find generalizations of the Bardeen-type and Simpson-Visser geometries and explore the regularity conditions of the solutions.
- J. Harada, “Gravity at cosmological distances: Explaining the accelerating expansion without dark energy,” Phys. Rev. D 108, (2023) no.4, 044031 [arXiv:2308.02115 [gr-qc]].
- C. A. Mantica and L. G. Molinari, “A note on Harada’s Conformal Killing gravity,” [arXiv:2308.06803 [gr-qc]].
- A. Barnes, “Vacuum Static Spherically Symmetric Spacetimes in Harada’s Theory,” [arXiv:2309.05336 [gr-qc]].
- J. T. S. S. Junior, F. S. N. Lobo and M. E. Rodrigues, “(Regular) Black holes in conformal Killing gravity coupled to nonlinear electrodynamics and scalar fields,” [arXiv:2310.19508 [gr-qc]].
- A. Simpson and M. Visser, “Black-bounce to traversable wormhole,” JCAP 02, 042 (2019) [arXiv:1812.07114 [gr-qc]].
- A. Simpson, “Traversable Wormholes, Regular Black Holes, and Black-Bounces,” [arXiv:2104.14055 [gr-qc]].
- M. E. Rodrigues and M. V. d. S. Silva, “Source of black bounces in general relativity,” Phys. Rev. D 107 no.4, 044064 (2023) [arXiv:2302.10772 [gr-qc]].
- A. Simpson, P. Martin-Moruno and M. Visser, “Vaidya spacetimes, black-bounces, and traversable wormholes,” Class. Quant. Grav. 36, no.14, 145007 (2019) [arXiv:1902.04232 [gr-qc]].
- H. Huang and J. Yang, “Charged Ellis Wormhole and Black Bounce,” Phys. Rev. D 100, no.12, 124063 (2019) [arXiv:1909.04603 [gr-qc]].
- F. S. N. Lobo, A. Simpson and M. Visser, “Dynamic thin-shell black-bounce traversable wormholes,” Phys. Rev. D 101, no.12, 124035 (2020) [arXiv:2003.09419 [gr-qc]].
- J. R. Nascimento, A. Y. Petrov, P. J. Porfirio and A. R. Soares, “Gravitational lensing in black-bounce spacetimes,” Phys. Rev. D 102, no.4, 044021 (2020) [arXiv:2005.13096 [gr-qc]]. Tsukamoto:2020bjm
- N. Tsukamoto, “Gravitational lensing in the Simpson-Visser black-bounce spacetime in a strong deflection limit,” Phys. Rev. D 103, no.2, 024033 (2021) [arXiv:2011.03932 [gr-qc]].
- X. T. Cheng and Y. Xie, “Probing a black-bounce, traversable wormhole with weak deflection gravitational lensing,” Phys. Rev. D 103, no.6, 064040 (2021).
- N. Tsukamoto, “Gravitational lensing by two photon spheres in a black-bounce spacetime in strong deflection limits,” Phys. Rev. D 104, no.6, 064022 (2021) [arXiv:2105.14336 [gr-qc]].
- F. S. N. Lobo, M. E. Rodrigues, M. V. de Sousa Silva, A. Simpson and M. Visser, “Novel black-bounce spacetimes: wormholes, regularity, energy conditions, and causal structure,” Phys. Rev. D 103, no.8, 084052 (2021) [arXiv:2009.12057 [gr-qc]].
- E. Franzin, S. Liberati, J. Mazza, A. Simpson and M. Visser, “Charged black-bounce spacetimes,” JCAP 07, 036 (2021) [arXiv:2104.11376 [gr-qc]].
- M. Guerrero, G. J. Olmo, D. Rubiera-Garcia and D. S. C. Gómez, “Shadows and optical appearance of black bounces illuminated by a thin accretion disk,” JCAP 08, 036 (2021) [arXiv:2105.15073 [gr-qc]].
- K. Jafarzade, M. Kord Zangeneh and F. S. N. Lobo, “Observational optical constraints of regular black holes,” Annals Phys. 446, 169126 (2022) [arXiv:2106.13893 [gr-qc]].
- Y. Yang, D. Liu, Z. Xu, Y. Xing, S. Wu and Z. W. Long, “Echoes of novel black-bounce spacetimes,” Phys. Rev. D 104, no.10, 104021 (2021) [arXiv:2107.06554 [gr-qc]].
- P. Bambhaniya, S. K, K. Jusufi and P. S. Joshi, “Thin accretion disk in the Simpson-Visser black-bounce and wormhole spacetimes,” Phys. Rev. D 105, no.2, 023021 (2022) [arXiv:2109.15054 [gr-qc]].
- M. Y. Ou, M. Y. Lai and H. Huang, “Echoes from asymmetric wormholes and black bounce,” Eur. Phys. J. C 82, no.5, 452 (2022) [arXiv:2111.13890 [gr-qc]].
- Y. Guo and Y. G. Miao, “Charged black-bounce spacetimes: Photon rings, shadows and observational appearances,” Nucl. Phys. B 983, 115938 (2022) [arXiv:2112.01747 [gr-qc]].
- S. R. Wu, B. Q. Wang, D. Liu and Z. W. Long, “Echoes of charged black-bounce spacetimes,” Eur. Phys. J. C 82, no.11, 998 (2022) [arXiv:2201.08415 [gr-qc]].
- N. Tsukamoto, “Retrolensing by two photon spheres of a black-bounce spacetime,” Phys. Rev. D 105, no.8, 084036 (2022) [arXiv:2202.09641 [gr-qc]].
- J. Zhang and Y. Xie, “Gravitational lensing by a black-bounce-Reissner–Nordström spacetime,” Eur. Phys. J. C 82, no.5, 471 (2022)
- K. A. Bronnikov, “Black bounces, wormholes, and partly phantom scalar fields,” Phys. Rev. D 106, no.6, 064029 (2022) [arXiv:2206.09227 [gr-qc]].
- P. Cañate, “Black bounces as magnetically charged phantom regular black holes in Einstein-nonlinear electrodynamics gravity coupled to a self-interacting scalar field,” Phys. Rev. D 106, no.2, 024031 (2022) [arXiv:2202.02303 [gr-qc]].
- A. Lima, G. Alencar and D. Sáez-Chillon Gómez, “Regularizing Rotating Black Strings: a new black bounce solution,” [arXiv:2307.07404 [gr-qc]].
- A. Lima, G. Alencar, R. N. Costa Filho and R. R. Landim, “Charged black string bounce and its field source,” Gen. Rel. Grav. 55 no.10, 108 (2023) [arXiv:2306.03029 [gr-qc]].
- K. A. Bronnikov, M. E. Rodrigues and M. V. de S. Silva, “Cylindrical black bounces and their field sources,” Phys. Rev. D 108 no.2, 024065 (2023) [arXiv:2305.19296 [gr-qc]].
- C. F. S. Pereira, D. C. Rodrigues, J. C. Fabris and M. E. Rodrigues, “Black-bounce solution in k𝑘kitalic_k-essence theories,” [arXiv:2309.10963 [gr-qc]].
- M. Fitkevich, “Black bounces and remnants in dilaton gravity,” Phys. Rev. D 105, no.10, 106027 (2022) [arXiv:2202.00023 [gr-qc]].
- E. L. B. Junior and M. E. Rodrigues, “Black-bounce in f(T)𝑓𝑇f(T)italic_f ( italic_T ) gravity,” Gen. Rel. Grav. 55, no.1, 8 (2023) [arXiv:2203.03629 [gr-qc]].
- J. T. S. S. Junior and M. E. Rodrigues, “Coincident f(ℚ)𝑓ℚf(\mathbb{Q})italic_f ( blackboard_Q ) gravity: black holes, regular black holes, and black bounces,” Eur. Phys. J. C 83, no.6, 475 (2023) [arXiv:2306.04661 [gr-qc]].
- A. Bonanno and M. Reuter, “Renormalization group improved black hole space-times,” Phys. Rev. D 62 (2000), 043008 [arXiv:hep-th/0002196 [hep-th]].
- K. A. Bronnikov and R. K. Walia, “Field sources for Simpson-Visser spacetimes,” Phys. Rev. D 105 (2022) no.4, 044039 [arXiv:2112.13198 [gr-qc]].
- G. G. L. Nashed and E. N. Saridakis, “Stability of motion and thermodynamics in charged black holes in f(T) gravity,” JCAP 05 (2022) no.05, 017 [arXiv:2111.06359 [gr-qc]].
- G. Kofinas, E. Papantonopoulos and E. N. Saridakis, “Self-Gravitating Spherically Symmetric Solutions in Scalar-Torsion Theories,” Phys. Rev. D 91 (2015) no.10, 104034 [arXiv:1501.00365 [gr-qc]].
Paper Prompts
Sign up for free to create and run prompts on this paper using GPT-5.
Top Community Prompts
Collections
Sign up for free to add this paper to one or more collections.