J 2017

Are eikonal quasinormal modes linked to the unstable circular null geodesics?

KONOPLYA, Roman and Zdeněk STUCHLÍK

Basic information

Original name

Are eikonal quasinormal modes linked to the unstable circular null geodesics?

Authors

KONOPLYA, Roman (804 Ukraine, belonging to the institution) and Zdeněk STUCHLÍK (203 Czech Republic, guarantor, belonging to the institution)

Edition

Physics Letters B, 2017, 0370-2693

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/47813059:19240/17:A0000011

Organization unit

Faculty of Philosophy and Science in Opava

UT WoS

000406183300090

Keywords in English

null geodesics; eikonal quasinormal modes; black holes; Einstein-Lovelock theory

Tags

International impact, Reviewed

Links

GB14-37086G, research and development project.
Změněno: 5/4/2018 16:09, RNDr. Jan Hladík, Ph.D.

Abstract

V originále

In Cardoso etal. (V. Cardoso, A.S. Miranda, E. Berti, H. Witek, V.T. Zanchin, Phys. Rev. D 79 (2009) 064016, arXiv:0812.1806 [hep-th]) it was claimed that quasinormal modes which any stationary, spherically symmetric and asymptotically flat black hole emits in the eikonal regime are determined by the parameters of the circular null geodesic: the real and imaginary parts of the quasinormal mode are multiples of the frequency and instability timescale of the circular null geodesics respectively. We shall consider asymptotically flat black hole in the Einstein-Lovelock theory, find analytical expressions for gravitational quasinormal modes in the eikonal regime and analyze the null geodesics. Comparison of the both phenomena shows that the expected link between the null geodesics and quasinormal modes is violated in the Einstein-Lovelock theory. Nevertheless, the correspondence exists for a number of other cases and here we formulate its actual limits.