Regular Article - Theoretical Physics
Gravitational field of global monopole within the Eddington-inspired Born-Infeld theory of gravity
Departemen Fisika, FMIPA, Universitas Indonesia, Depok, 16424, Indonesia
* e-mail: email@example.com
Accepted: 17 May 2018
Published online: 31 May 2018
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, . When seen as a black hole eating up a global monopole, the corresponding Schwarzschild horizon is shrunk by . The deficit solid angle makes the space is globally not Euclidean, and to first order in (weak-field limit) the deflection angle of light is smaller than its Barriola-Vilenkin counterpart.
© The Author(s), 2018