Extension of Hayward black hole in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si148.svg" display="inline" id="d1e2047"><mml:mrow><mml:mi>f</mml:mi><mml:mrow><mml:mo>(</mml:mo><mml:mi>R</mml:mi><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:math> gravity coupled with a scalar field

Nashed, G.G.L.

doi:10.1016/j.dark.2024.101462

Physics of the Dark Universe

2024

DOI: 10.1016/j.dark.2024.101462

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Extension of Hayward black hole in f(R) gravity coupled with a scalar field

G.G.L. Nashed

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Black Hole Solutions in Non-Minimally Coupled Weyl Connection Gravity

Lima,

Gomes

2024

Universe

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Schwarzschild and Reissner–Nordstrøm black hole solutions are found in the context of a non-minimal matter–curvature coupling with Weyl connection both in vacuum and in the presence of a cosmological constant-like matter content. This model has the advantage of an extra force term which can mimic dark matter and dark energy, and simultaneously following Weyl’s idea of unifying gravity and electromagnetism. In fact, vacuum Schwarzschild solutions differ from the ones in a constant curvature scenario in f(R) theories, with the appearance of a coefficient in the term that is linear in r and a corrected “cosmological constant”. Non-vacuum Schwarzschild solutions formally have the same solutions as in the previous case, with the exception being the physical interpretation of a cosmological constant as the source of the matter Lagrangian and not a simple reparameterization of the f(R) description. Reissner–Nordstrøm solutions cannot be found in a vacuum, only in the presence of matter fields, with the result that the solutions also differ from the constant curvature scenario in f(R) theories by the term being linear in r, the corrected/dressed charge, and the cosmological constant. These results have bearings on future numerical simulations for black holes and gravitational waves in next-generation wavelet templates.

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Black Hole Solutions in Non-Minimally Coupled Weyl Connection Gravity

Lima,

Gomes

2024

Universe

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Extension of Hayward black hole in f(R) gravity coupled with a scalar field

Cited by 1 publication

References 61 publications

Black Hole Solutions in Non-Minimally Coupled Weyl Connection Gravity

Black Hole Solutions in Non-Minimally Coupled Weyl Connection Gravity

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