https://doi.org/10.1140/epjc/s10052-019-7309-z
Regular Article - Theoretical Physics
Black hole shadow of a rotating polytropic black hole by the Newman–Janis algorithm without complexification
1
School of Physical Sciences and Nanotechnology, Yachay Tech University, 100119, Urcuquí, Ecuador
2
Instituto de Física, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2950, Casilla, 4059, Valparaiso, Chile
3
Centro de Astrofísica e Gravitação, Departamento de Física, Instituto Superior Técnico-IST, Universidade de Lisboa-UL, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
4
Departamento de Física, Universidad de Los Andes, Cra. 1 E No 18 A-10, Bogotá, Colombia
* e-mail: econtreras@yachaytech.edu.ec
Received:
3
June
2019
Accepted:
15
September
2019
Published online:
26
September
2019
In this work, starting from a spherically symmetric polytropic black hole, a rotating solution is obtained by following the Newman–Janis algorithm without complexification. Besides studying the horizon, the static conditions and causality issues of the rotating solution, we obtain and discuss the shape of its shadow. Some other physical features as the Hawking temperature and emission rate of the rotating polytropic black hole solution are also discussed.
© The Author(s), 2019
