J 2018

Exact Solution for a Black Hole Embedded in a Nonstatic Dust-filled Universe

KOPTĚVA, Olena, Pavlína JALŮVKOVÁ, Iryna BORMOTOVA and Zdeněk STUCHLÍK

Basic information

Original name

Exact Solution for a Black Hole Embedded in a Nonstatic Dust-filled Universe

Authors

KOPTĚVA, Olena (804 Ukraine, guarantor, belonging to the institution), Pavlína JALŮVKOVÁ (203 Czech Republic, belonging to the institution), Iryna BORMOTOVA (804 Ukraine, belonging to the institution) and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution)

Edition

Astrophysical Journal, 2018, 0004-637X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/47813059:19240/18:A0000248

Organization unit

Faculty of Philosophy and Science in Opava

UT WoS

000448150800012

Keywords in English

black hole physics; cosmology: theory; gravitation

Tags

International impact, Reviewed

Links

GB14-37086G, research and development project.
Změněno: 4/4/2019 11:48, RNDr. Jan Hladík, Ph.D.

Abstract

V originále

An exact solution of the Lemaitre-Tolman-Bondi class is investigated as a possible model of the Schwarzschild-like black hole embedded in a nonstatic dust-filled universe for the three types of spatial curvature. The solution is obtained in comoving coordinates by means of the mass function method. It is shown that the central part of space contains a Schwarzschild-like black hole. The R-T structure of the resulting spacetime is built. It is shown that the solution includes both the Schwarzschild and Friedmann solutions as its natural limits. The geodesic equations for test particles are analyzed. The particle observable velocities are found. The trajectories of the test particles are built from the point of view of both comoving and distant observers. For the distant observer, the results coincide with the Schwarzschild picture within a second-order accuracy near the symmetry center.