Publication date: Feb 2016
Abstract:
In this work the model is constructed to describe the black hole
enclosed in the dust cosmological background in case of zero spatial
curvature. This model is based on our exact solution of the class of LTB
inhomogeneous solutions. We considered the properties of the model and
built the R-T-structure of the resulting space-time. It was shown that
central region includes the Schwarzchild-like black hole. We derived the
equations of motion of the test particle from the point of view of the
observer comoving with cosmological expansion. We found analytical
expressions for observable orbital and radial velocities of the particle
and plotted the surface profile of the total velocity in this case. In
comoving coordinate frame it is impossible to study the questions
concerning the black hole horizon but one can observe the local motion
of the particles influenced by the cosmological expansion.
Authors:
Jaluvkova, Pavlina; Kopteva, Elena; Stuchlik, Zdenek;