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arXiv · 1803.03001

Gravitational field of global monopole within the Eddington-inspired Born-Infeld theory of gravity

Reyhan D. Lambaga·Handhika S. Ramadhan
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Abstract

Within the framework of the recent Eddington-inspired Born-Infeld (EiBI) theory we study gravitational field around an $SO(3)$ global monopole. The solution also suffers from the deficit solid angle as in the Barriola-Vilenkin metric but shows a distinct feature that cannot be transformed away unless in the vanishing EiBI coupling constant, $κ$. When seen as a black hole eating up a global monopole, the corresponding Schwarzschild horizon is shrunk by $κ$. The deficit solid angle makes the space is globally not Euclidean, and to first order in $κ$ (weak-field limit) the deflection angle of light is smaller than its Barriola-Vilenkin counterpart.

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Reyhan D. Lambaga, Handhika S. Ramadhan. 2018-05-18. Gravitational field of global monopole within the Eddington-inspired Born-Infeld theory of gravity. https://doi.org/10.1140/epjc%2Fs10052-018-5906-x

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