@Article{AraujoFilho_etal2024,
author="Araujo Filho, A. A.
and Hassanabadi, H.
and Heidari, N.
and Kriz, J.
and Zare, S.",
title="Gravitational traces of bumblebee gravity in metric-affine formalism",
journal="Classical and Quantum Gravity",
year="2024",
publisher="IOP Publishing Ltd",
volume="41",
number="5",
pages="055003--21pp",
optkeywords="bumblebee gravity; metric affine formalism; shadows",
abstract="This work explores various manifestations of bumblebee gravity within the metric-affine formalism. We investigate the impact of the Lorentz violation parameter, denoted as X, on the modification of the Hawking temperature. Our calculations reveal that as X increases, the values of the Hawking temperature attenuate. To examine the behavior of massless scalar perturbations, specifically the quasinormal modes, we employ the Wentzel-Kramers-Brillouin method. The transmission and reflection coefficients are determined through our calculations. The outcomes indicate that a stronger Lorentz-violating parameter results in slower damping oscillations of gravitational waves. To comprehend the influence of the quasinormal spectrum on time-dependent scattering phenomena, we present a detailed analysis of scalar perturbations in the time-domain solution. Additionally, we conduct an investigation on shadows, revealing that larger values of X correspond to larger shadow radii. Furthermore, we constrain the magnitude of the shadow radii using the EHT horizon-scale image of SgrA* . Finally, we calculate both the time delay and the deflection angle.",
optnote="WOS:001152994800001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5925), last updated on Sun, 11 Feb 2024 18:21:20 +0000",
issn="0264-9381",
doi="10.1088/1361-6382/ad1712",
opturl="https://arxiv.org/abs/2305.18871",
opturl="https://doi.org/10.1088/1361-6382/ad1712",
language="English"
}