Detailed Information on Publication Record
2017
Non-Schwarzschild black-hole metric in four dimensional higher derivative gravity: Analytical approximation
KOKKOTAS, Konstantinos D., Roman KONOPLYA and Alexander ZHIDENKOBasic information
Original name
Non-Schwarzschild black-hole metric in four dimensional higher derivative gravity: Analytical approximation
Authors
KOKKOTAS, Konstantinos D. (300 Greece), Roman KONOPLYA (804 Ukraine, guarantor, belonging to the institution) and Alexander ZHIDENKO (804 Ukraine)
Edition
Physical Review D, 2017, 2470-0010
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
RIV identification code
RIV/47813059:19240/17:A0000053
Organization unit
Faculty of Philosophy and Science in Opava
UT WoS
000409259700007
Keywords in English
higher derivative gravity; analytical solution; black holes
Tags
International impact, Reviewed
Změněno: 5/4/2018 14:57, RNDr. Jan Hladík, Ph.D.
Abstract
V originále
Higher derivative extensions of Einstein gravity are important within the string theory approach to gravity and as alternative and effective theories of gravity. H. Lu, A. Perkins, C. Pope, and K. Stelle [Phys. Rev. Lett. 114, 171601 (2015)] found a numerical solution describing a spherically symmetric non-Schwarzschild asymptotically flat black hole in Einstein gravity with added higher derivative terms. Using the general and quickly convergent parametrization in terms of the continued fractions, we represent this numerical solution in the analytical form, which is accurate not only near the event horizon or far from the black hole, but in the whole space. Thereby, the obtained analytical form of the metric allows one to study easily all the further properties of the black hole, such as thermodynamics, Hawking radiation, particle motion, accretion, perturbations, stability, quasinormal spectrum, etc. Thus, the found analytical approximate representation can serve in the same way as an exact solution.