STUCHLÍK, Zdeněk, Ahmadjon ABDUJABBAROV, Bobomurat AHMEDOV, Farruh ATAMUROTOV and Naresh DADHICH. Energetics and optical properties of 6-dimensional rotating black hole in pure Gauss-Bonnet gravity. The European Physical Journal C. US - Spojené státy americké, 2015, vol. 75, No 8, p. "399-1"-"399-11", 11 pp. ISSN 1434-6044. Available from: https://dx.doi.org/10.1140/epjc/s10052-015-3604-5.
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Basic information
Original name Energetics and optical properties of 6-dimensional rotating black hole in pure Gauss-Bonnet gravity
Authors STUCHLÍK, Zdeněk, Ahmadjon ABDUJABBAROV, Bobomurat AHMEDOV, Farruh ATAMUROTOV and Naresh DADHICH.
Edition The European Physical Journal C, US - Spojené státy americké, 2015, 1434-6044.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Confidentiality degree is not subject to a state or trade secret
WWW www
Organization unit Faculty of Philosophy and Science in Opava
Doi http://dx.doi.org/10.1140/epjc/s10052-015-3604-5
UT WoS 000360439900002
Keywords in English Gauss-Bonnet gravity; Penrose process; black holes
Tags UF
Tags International impact, Reviewed
Links EE2.3.20.0071, research and development project. GB14-37086G, research and development project.
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 27/1/2021 11:41.
Abstract
We study physical processes around a rotating black hole in pure Gauss-Bonnet (GB) gravity. In pure GB gravity, the gravitational potential has a slower fall-off as compared to the corresponding Einstein potential in the same dimension. It is therefore expected that the energetics of a pure GB black hole would be weaker, and our analysis bears out that the efficiency of energy extraction by the Penrose-process is increased to 25.8% and the particle acceleration is increased to 55.28 %; the optical shadow of the black hole is decreased. These are in principle distinguishing observable features of a pure GB black hole.
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