Dilatonic dyon-like black hole solutions in the model with two Abelian gauge fields
Abstract
Dilatonic black hole dyon-like solutions in the gravitational model with a scalar field, two 2-forms, two dilatonic coupling constants , , obeying and the sign parameter for scalar field kinetic term are considered. Here corresponds to a ghost scalar field. These solutions are defined up to solutions of two master equations for two moduli functions, when for . Some physical parameters of the solutions are obtained: gravitational mass, scalar charge, Hawking temperature, black hole area entropy and parametrized post-Newtonian (PPN) parameters and . The PPN parameters do not depend on the couplings and . A set of bounds on the gravitational mass and scalar charge are found by using a certain conjecture on the parameters of solutions, when , .
Keywords
Cite
@article{arxiv.1701.02029,
title = {Dilatonic dyon-like black hole solutions in the model with two Abelian gauge fields},
author = {M. E. Abishev and K. A. Boshkayev and V. D. Ivashchuk},
journal= {arXiv preprint arXiv:1701.02029},
year = {2017}
}
Comments
23 pages, Latex, 2 figures, corrected revised version: several paragraphs, remarks, equations and 5 references are added, ref. [13] is replaced. To appear in EPJC. arXiv admin note: substantial text overlap with arXiv:1504.07657