Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Campos, J. A. V."'
Observational data of the Sagittarius A* (Sgr A*) shadow released by the Event Horizon Telescope (EHT) are used to investigate eventual deviations in the black hole shadow radius, aiming to seek physics beyond the Standard Model (SM) coming from extr
Externí odkaz:
http://arxiv.org/abs/2407.04609
We consider $f(R,T)$ modified theories of gravity in the context of string theory inspired dilaton gravity. We deal with a specific model that under certain conditions describes the late time Universe in accord with observational data in modern cosmo
Externí odkaz:
http://arxiv.org/abs/2312.14899
In the present work, we study the scattering for a black hole described by the canonical acoustic metric with Lorentz violation using asymptotic and numerical methods. In this scenario, we also check the effects of quasinormal modes and the acoustic
Externí odkaz:
http://arxiv.org/abs/2312.14258
Publikováno v:
NPB, 116617 (2024)
In this paper, we consider the Schwarzschild-Tangherlini black hole to investigate the process of scalar wave scattering by the black hole in a spacetime of (d + 1) dimensions and also with the generalized uncertainty principle (GUP). In this scenari
Externí odkaz:
http://arxiv.org/abs/2307.09536
In this paper, we investigate the process of massless scalar wave scattering due to a noncommutative black hole with a global monopole through the partial wave method. We computed the cross section of differential scattering and absorption at the low
Externí odkaz:
http://arxiv.org/abs/2212.13973
Publikováno v:
Annals Phys. 434 (2021) 168662
We consider quantum corrections for the Schwarzschild black hole metric by using the generalized uncertainty principle (GUP) to investigate quasinormal modes, shadow and their relationship in the eikonal limit. We calculate the quasinormal frequencie
Externí odkaz:
http://arxiv.org/abs/2108.04998
In this paper we investigate quasinormal modes (QNM) for a scalar field around a noncommutative Schwarzschild black hole. We verify the effect of noncommutativity on quasinormal frequencies by applying two procedures widely used in the literature. Th
Externí odkaz:
http://arxiv.org/abs/2103.10659
In this paper we have implemented quantum corrections for the Schwarzschild black hole metric using the generalized uncertainty principle (GUP) in order to investigate the scattering process. We mainly compute, at the low energy limit, the differenti
Externí odkaz:
http://arxiv.org/abs/2003.13464
In this paper we aim to investigate the process of massless scalar wave scattering due to a self-dual black hole through the partial wave method. We calculate the phase shift analytically at the low energy limit and we show that the dominant term of
Externí odkaz:
http://arxiv.org/abs/2002.12090
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