TY - JOUR
T1 - Schwarzschild-like black hole with a topological defect in bumblebee gravity
AU - Güllü, İbrahim
AU - Övgün, Ali
N1 - Funding Information:
The authors are grateful to the anonymous referees for their valuable comments and suggestions to improve the paper.
Publisher Copyright:
© 2021 Elsevier Inc.
PY - 2022/1
Y1 - 2022/1
N2 - In this paper, we derive an exact black hole spacetime metric in the Einstein–Hilbert–Bumblebee (EHB) gravity around global monopole field. We study the horizon, temperature, and the photon sphere of the black hole. Using the null geodesics equation, we obtain the shadow cast by the Schwarzschild-like black hole with a topological defect in bumblebee gravity. Interestingly, the radius of shadow of the black hole increases with increase in the global monopole parameter. We also visualize the shadows and energy emission rates for different values of parameters. Moreover, using the Gauss–Bonnet theorem, we calculate the deflection angle in weak field limits and we discuss the possibility of testing the effect of global monopole field and bumblebee field, on a weak deflection angle. We find that the global monopole parameter and also Lorentz symmetry breaking parameter has an increasing effect on the deflection angle.
AB - In this paper, we derive an exact black hole spacetime metric in the Einstein–Hilbert–Bumblebee (EHB) gravity around global monopole field. We study the horizon, temperature, and the photon sphere of the black hole. Using the null geodesics equation, we obtain the shadow cast by the Schwarzschild-like black hole with a topological defect in bumblebee gravity. Interestingly, the radius of shadow of the black hole increases with increase in the global monopole parameter. We also visualize the shadows and energy emission rates for different values of parameters. Moreover, using the Gauss–Bonnet theorem, we calculate the deflection angle in weak field limits and we discuss the possibility of testing the effect of global monopole field and bumblebee field, on a weak deflection angle. We find that the global monopole parameter and also Lorentz symmetry breaking parameter has an increasing effect on the deflection angle.
KW - Bumblebee gravity
KW - Gauss–Bonnet theorem
KW - Global monopole
KW - Lorentz symmetry breaking
KW - Shadow
KW - Weak deflection angle
UR - http://www.scopus.com/inward/record.url?scp=85121323380&partnerID=8YFLogxK
U2 - 10.1016/j.aop.2021.168721
DO - 10.1016/j.aop.2021.168721
M3 - Article
AN - SCOPUS:85121323380
SN - 0003-4916
VL - 436
JO - Annals of Physics
JF - Annals of Physics
M1 - 168721
ER -