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@article{76264,
author = {Konoplya, Roman},
article_number = {6},
doi = {http://dx.doi.org/10.1103/PhysRevD.107.064039},
keywords = {gravitonial-waves;quasinormal modes; black holes},
language = {eng},
issn = {2470-0010},
journal = {Physical Review D},
title = {Quasinormal modes in higher-derivative gravity: Testing the black hole parametrization and sensitivity of overtones},
url = {https://journals.aps.org/prd/abstract/10.1103/PhysRevD.107.064039},
volume = {107},
year = {2023}
}
TY - JOUR
ID - 76264
AU - Konoplya, Roman
PY - 2023
TI - Quasinormal modes in higher-derivative gravity: Testing the black hole parametrization and sensitivity of overtones
JF - Physical Review D
VL - 107
IS - 6
SP - "064039-1"-"064039-8"
EP - "064039-1"-"064039-8"
SN - 24700010
KW - gravitonial-waves;quasinormal modes
KW - black holes
UR - https://journals.aps.org/prd/abstract/10.1103/PhysRevD.107.064039
N2 - The fundamental quasinormal modes of black holes in higher-derivative gravity given by the EinsteinWeyl action are known to be moderately corrected by the Weyl term. Here we will show that the first several overtones are highly sensitive to even a relatively small Weyl correction, which might be important when representing the earlier stage of the black hole ringdown. In addition, we have solved the problem related to the analytical parametrized approximation of the numerical black hole solution in the Einstein-Weyl theory: In some range of parameters, the approximation for the metric developed up to the third order leads to the unusual highly nonmonotonic behavior of the frequencies. We have shown that this problem can be solved via the extension of the parametrization of the metric to higher orders until reaching the regime when the frequencies do not change with further increasing of the order.
ER -
KONOPLYA, Roman. Quasinormal modes in higher-derivative gravity: Testing the black hole parametrization and sensitivity of overtones. \textit{Physical Review D}. 2023, roč.~107, č.~6, s.~''064039-1''-''064039-8'', 8 s. ISSN~2470-0010. Dostupné z: https://dx.doi.org/10.1103/PhysRevD.107.064039.
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