Speaker
Mr.
Algis Malybayev
(KazNU)
Description
A class of dilatonic black hole dyon-like solutions in the gravitational
$4d$ model with two scalar fields, two 2-forms and two 2-dimensional dilatonic coupling vectors is obtained. The solutions are governed by two parameters $P > 0$ and $\mu > 0$. For collinear dilatonic coupling vectors the metric of the solution is coinciding with that
of the Reissner-Nordstr\"om one. The physical parameters of the solutions:
gravitational mass, scalar charge, electric and magnetic charges, Hawking temperature, black hole area entropy and parametrized post-Newtonian (PPN) parameters are obtained.
The PPN parameters do not depend on the dilatonic coupling vectors.
A lower bound on the gravitational mass is found.
Primary authors
Dr.
Farida Belissarova
(KazNU)
Dr.
Kuantay Boshkayev
(KazNU)
Mr.
Algis Malybayev
(KazNU)
Dr.
Vladimir Ivashchuk
